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The Blue Planet
The Earth, with its atmosphere and oceans, its
complex biosphere, its crust of relatively oxidised, silica rich, sedimentary,
igneous, and metamorphic rocks overlaying [a magnesium silicate mantle
and core] of metallic iron, with its ice caps, deserts, forests, tundra,
jungles, grasslands, fresh-water lakes, coal beds, oil deposits, volcanoes,
fumaroles, factories, automobiles, plants, animals, magnetic field, ionosphere,
mid-ocean ridges, convincing mantle... is a system of stunning complexity.
J. S. Lewis, American Geologist 54
An
imaginary space-traveler approaching the solar system from interstellar
space would encounter a very interesting scene. Let us imagine that we
are such travelers and that we're arriving at the plane of the ecliptic-the
great circle of the celestial sphere in which all the major planets of
our solar system move. The first planet we will meet is Pluto. This planet
is quite a cold place. The temperature is around -238°C. The planet has
a thin of atmosphere that is in a gaseous state only when it draws slightly
nearer to the sun in its rather elliptical orbit. At other times, the
atmosphere becomes a mass of ice. Pluto, briefly, is a lifeless sphere
enveloped in ice.
Advancing towards the sun, you next encounter Neptune. It is cold too:
approximately -218°C. The atmosphere, consisting of hydrogen, helium
and methane, is poisonous for life. Winds blowing nearly 2,000 kilometers
an hour blast across the surface of the planet.
Next is Uranus: a gaseous planet with rocks and ice on its surface.
The temperature is -214°C and the atmosphere again consists of hydrogen,
helium and methane--unsuitable for human beings to live in.
You reach Saturn after Uranus. This is the second biggest planet in
the solar system and is particularly notable for the system of rings
encircling it. These rings are made up of gases, rock and ice. One of
the many interesting things about Saturn is that it is composed entirely
of gas: 75% hydrogen and 25% helium and its density is less than that
of water. If you want to "land" on Saturn, you'd better design your
spaceship to be like an inflatable boat! The average temperature is
again very low: -178°C.
Coming up next is Jupiter: the biggest planet in the solar system,
it is 318 times the size of Earth. Like Saturn, Jupiter is also a gaseous
planet. Since it is difficult to distinguish between "atmosphere" and
"surface" on such planets, it is hard to say what the "surface temperature"
is but in the upper reaches of the atmosphere, the temperature is -143°C.
A notable feature of Jupiter's atmosphere is something called the Great
Red Spot. It was first noticed 300 hundred years ago. Astronomers now
know that it is an enormous storm system that has been raging in the
Jovian atmosphere for centuries. It is big enough to swallow up a couple
of planets the size of Earth whole. Jupiter may be a visually thrilling
planet, but it's no home for people, who would be killed instantly by
its freezing temperatures, violent winds, and intense radiation.
Then comes Mars. The atmosphere of Mars cannot sustain human life because
it is mostly carbon dioxide. The surface is everywhere pocked with craters:
the result of eons of meteor impacts and strong winds blowing across
the surface that can raise sandstorms that last for days or weeks at
a time. The temperature varies rather much but drops as low as -53°C.
There has been much speculation that Mars might harbor life, but all
the evidence shows that this is a lifeless world too.
Speeding away from Mars and heading toward the sun, we notice a blue
planet that we decide to skip for the time being while we explore some
more. Our search brings us to a planet called Venus. This planet is
everywhere shrouded in brilliant white clouds but the temperature at
the surface is 450°C, which is enough to cause lead to melt. The atmosphere
is composed mostly of carbon dioxide. At the surface, the atmospheric
pressure is equal to 90 terrestrial atmospheres: on Earth, you'd have
to descend a kilometer into the sea before you reached a pressure that
high. The atmosphere of Venus contains layers of gaseous sulfuric acid
several kilometers deep. When it rains on Venus, it isn't raining rain
you know: it's raining acid. No human or other life could exist in such
a hellish place for a second.
We press on and come to Mercury, a small, rocky world, blasted by the
heat and radiation of the sun. Its rotation has been so slowed down
by its proximity to the sun that the planet makes only three full axial
rotations in the time it takes to revolve twice around the sun. In other
words, two of Mercury's "years" is equal to three of its "days". Because
of this prolonged diurnal cycle, one side of Mercury becomes extremely
hot while the other is extremely cold. The difference between the daytime
and nighttime sides of Mercury is as much as 1,000°C. Of course such
an environment cannot support life.

Even Mars, the only other planet in the solar system to come
close to resembling the earth physically, is nothing but an arid,
lifeless ball of rock. |
To sum up, we've taken looks at eight planets and not one of them,
including their fifty-three satellites offers anything that might serve
as a haven for life. Each of them is lifeless ball of gas, ice, or rock.
But the blue planet that we skipped over a while ago? That one's very
different from the others. With its hospitable atmosphere, surface features,
ambient temperatures, magnetic field, and supply of elements and set
just the right distance from the sun, it almost seems as if it had been
specially created to be a home for life.
And, as we shall discover, it was.
THE INFERNAL
SURFACE OF VENUS
The surface temperature on Venus reaches
as high as 450° C, which is sufficient to melt lead. The surface
of this world resembles a ball of fire covered with lava. Its
atmosphere is thick with sulfuric acid and a sulfuric acid rain
falls constantly. The atmospheric pressure at the surface is 90
times that of Earth: the equivalent of a depth of 1,000 meters
beneath the sea.
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A Brief Digression and Warning About "Adaptation"
In the rest of this chapter we will be examining features of Earth
that make it clear that our planet was created specifically for the
support of life. But before we do that, we need to make a brief digression
in order to avoid the possibility of any misunderstanding. This digression
is especially for those who are in the habit of recognizing the theory
of evolution as a scientific truth and who strongly believe in the concept
of "adaptation".
"Adaptation" is the noun form of the verb "adapt".
"Adapt" implies a modification according to changing circumstances. As
used by evolutionists, it means a "modification of an organism or its
parts that makes it more fit for existence under the conditions of its
environment". The theory of evolution claims that all life on earth is
derived from a single organism (a single common ancestor) that itself
came into being as a result of chance and the theory makes heavy use of
this sense of the word "adaptation" to support its case. Evolutionists
hold that living organisms change into new species by adapting to their
environment. We have discussed the invalidity of this claim, that mechanisms
of adaptation to natural conditions in living beings come into play only
under certain circumstances and it can never transform one species into
another in detail in our other books.55
(This is summed up in the appendix "Evolution Deceit" in this book) The
theory of evolution with its concept of "adaptation" is really just a
form of Lamarckism, a theory of organic evolution that holds that environmental
changes cause structural changes in animals and plants that can be transmitted
to offspring- a theory that has been soundly and rightly dismissed by
scientific circles.
Yet even though it has no scientific basis, the idea of adaptation
impresses most people and that is why we must address this point here
before going on. From belief in the adaptability of life-forms, it is
only a step to the idea that life could have developed on other planets
as well as it did once on Earth. The possibility of little green creatures
living on Pluto who might work up a slight sweat when the temperature
soared to 238°C, who breathe helium instead of oxygen, and who drink
sulfuric acid instead of water somehow tickles people's fancy, especially
people whose fancies have been richly nourished by the products of Hollywood
studios.
But these are only such stuff as dreams (and Hollywood movies) are
made of however and evolutionists who are better informed about biology
and biochemistry do not even attempt to defend such notions. They know
quite well that life exists only if necessary conditions and elements
are available. If they really believe in them at all, the partisans
of the little green men (or other alien life-forms) are those who blindly
adhere to the theory of evolution and are ignorant of even the basics
of biology and biochemistry and who, in their ignorance, come up with
preposterous scenarios.
So in understanding the error in the concept of adaptation, the first
thing that we need to note is that life can only exist if certain essential
conditions and elements are present. The only model of life that is
based on scientific criteria is that of carbon-based life and scientists
are in agreement that there is no other form of life to be found anywhere
elsewhere in the universe.
Carbon is the sixth element in the periodic table. This atom is the
basis of life on earth because all organic molecules (such as nucleic
acids, amino acids, proteins, fats, and sugars) are formed by the combination
of carbon with other elements in various ways. Carbon forms millions
of different types of proteins by combining with hydrogen, oxygen, and
nitrogen etc. No other elements can take the place of carbon. As we
shall see in the sections ahead, no element but carbon has the ability
to form the many different kinds of chemical bonds on which life depends.
Consequently if life is going to exist on any planet
anywhere in the universe it is going to have to be carbon-based.56
There are a number of conditions that are absolutely essential in order
for carbon-based life to exist. For example, carbon-based organic compounds
(like proteins) can exist only within a certain range of temperatures.
They start to dissociate over 120°C and are irrecoverably damaged if
they are frozen below -20°C. But it is not only temperature that plays
a vital role in determining the allowable limits of suitable conditions
for carbon-based life to exist: so too do the type and amount of light,
the strength of gravity, the composition of the atmosphere, and the
strength of the magnetic field. Earth provides precisely such conditions
as are needed to make life possible. If even one of conditions were
to be changed, if average temperatures surpassed 120°C for example,
there would be no life on Earth.
Therefore our little green creatures who might work up a slight sweat
when the temperature soars to 238°C, who breathe helium instead of oxygen,
and who drink sulfuric acid instead of water are not going to exist
anywhere because carbon-based life-forms cannot survive under such conditions
and carbon-based life-forms are the only kind there is. Life can only
exist in an environment within limits and under conditions that are
deliberately designed for life. That is true of life in general and
of human beings in particular.
Earth is such a deliberately-designed environment.
The Temperature of the World
Temperature and atmosphere are the first essential factors for life
on Earth. The Blue Planet has both a temperature that is livable and
an atmosphere that is breathable for living things, especially for such
complex living things as human beings. These two extremely different
factors however have come into being as a result of conditions that
turn out to be ideal for both.
One of these is the distance between the earth and the sun. Earth could
not be a home for life if were as near the sun as Venus is or as far
from it as Jupiter: carbon-based molecules can only survive between
the limits of 120 and -20°C and Earth is the only planet whose average
temperatures fall within those limits.
When one considers the universe as a whole, coming across a range of
temperatures as narrow as this is quite a difficult task because temperatures
in the universe vary from the millions of degrees of the hottest stars
to absolute zero (-273°C). In such a vast range of temperatures, the
thermal interval that allows life to exist is slim indeed; but the planet
Earth has it.


Unlike the other 63 major planets and satellites in our solar system,
the planet Earth is the only one possessing an atmosphere, an ambient
temperature, and a surface suitable for life. Although liquid water,
a fundamental requirement for life, is found nowhere else in the solar
system, three-fourths of the earth's surface is covered with it. |
The American geologists Frank Press and Raymond Siever
draw attention to the average temperatures prevailing on Earth. They note
that "life as we know it is possible over a very narrow temperature interval.
This interval is perhaps 1 or 2 percent of the range between a temperature
of absolute zero and the surface temperature of the Sun." 57
The maintenance of this thermal range is also related to the amount
of heat that the sun radiates as well as to the distance between the
earth and the sun. According to calculations, a reduction of just 10%
in the sun's radiant energy would result in the earth surface's being
covered by layers of ice many meters thick and that if it were to increase
by a little, all living things would be scorched and die.
Not only must the average temperature be ideal: the available heat
must also be distributed fairly equally over the whole planet. A number
of special precautions have been taken to ensure that this in fact happens.
The earth's axis is inclined 23° 27'to the plane of the ecliptic. This
inclination prevents overheating of the atmosphere in the regions between
the poles and the equator, causing them to become more temperate. If
this inclination did not exist, the temperature gradient between the
poles and equator would be much higher than it is and the temperate
zones wouldn't be so temperate-or livable.
The rotational speed of Earth on its axes also helps keep the thermal
distribution in balance. The earth makes a complete rotation once every
24 hours with the result that alternating periods of daylight and darkness
are fairly short.
Because they are short, the thermal gradient between the light and
dark sides of the planet are quite modest. The importance of this can
be seen in the extreme example of Mercury, where a day lasts longer
than a year and where the difference between daytime and nighttime temperatures
is almost 1,000°C.
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Many completely different
factors such as the distance between Earth and Sun, the planet's
rotational speed, the inclination of its axes, and the geographical
features of the surface all combine to ensure that our world is
heated in just the right way that life needs and that this heat
is adequately distributed.
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Geography also helps distribute heat equally over the earth. There
is a difference of about 100°C between the polar and equatorial regions
of Earth. If such a thermal gradient were to exist over a completely
level area, the result would be winds reaching speeds as high as 1,000
kilometers an hour sweeping away everything in their path. Instead,
Earth is full of geographical barriers that block the huge movements
of air that such a thermal gradient would otherwise cause. Those barriers
are chains of mountains like the one that stretches from the Pacific
in the east to the Atlantic in the west, beginning with the Himalayas
in China and continuing with the Taurus mountains in Anatolia and the
Alps in Europe. At sea, the excess heat in the equatorial regions is
transferred north and south thanks to the superior ability of the water
to conduct and dissipate heat.
At the same time, there are a number of auto-control systems that help
keep the atmospheric temperature in balance. For example when a region
heats up, the rate at which its water vaporizes increases, causing clouds
to form. These clouds reflect more light back into space, preventing
both the air and the surface below from getting warmer.
The Mass of the Earth and the Planet's Magnetic
Field
The size of Earth is no less important for life than are its distance
from the Sun, its rotational speed, or geographical features. Looking
at the planets we see a great range of sizes: Mercury is less than a
tenth the size of Earth while Jupiter is 318 times bigger. Is the size
of Earth as compared with other planets "coincidental"? Or is it deliberate?
When we examine the dimensions of Earth we can easily see that our
planet was designed to be exactly as big as it is. American geologists
Frank Press and Raymond Siever comment on Earth's "fitness":
And Earth's size was just about right
-not too small as to lose its atmosphere because its gravity was too small
to prevent gasses from escaping into space, and not so large that its
gravity would hold on to too much atmosphere, including harmful gases.58
In addition to its mass, the interior of Earth is also specially designed.
Because of its core, Earth has a strong magnetic field whose role in
the preservation of life is vital. According to Press and Siever:
The earth's interior is a gigantic but delicately balanced
heat engine fueled by radioactivity …Were it running more slowly, geological
activity would have proceeded at a slower pace. Iron might not have melted
and sunk to form the liquid core, and the magnetic field would never have
developed…if there had been more radioactive fuel and a faster running
engine, volcanic gas and dust would have blotted out the Sun, the atmosphere
would have been oppressively dense, and the surface would have been racked
by daily earthquakes and volcanic explosions.59

At the center of the earth there's a sort of heat-driven engine
that is so perfectly adjusted that it is strong enough to generate
the planet's magnetic shield yet not so strong as to engulf the crust
above in lava. |
The magnetic field these geologists talk about is of great importance
for life. This magnetic field originates from the structure of Earth's
core. The core consists of heavy elements like iron and nickel that
are capable of holding a magnetic charge. The inner core is solid while
the outer one is liquid. The two layers of the core move around each
other and this movement is what generates Earth's magnetic field. Extending
far beyond the surface, this field protects Earth from the effects of
detrimental radiation from outer space. The radiation of stars other
than the sun cannot travel through this shield. The Van Allen Belt,
whose magnetic lines extend ten thousand miles from Earth, protects
the globe from this deadly energy.
It is calculated that the plasma clouds trapped by the Van Allen Belt
sometimes attain energy levels 100 billion times more powerful than
that the atomic bomb released over Hiroshima. Cosmic rays may be equally
detrimental. The earth's magnetic field however lets only 0.1% of that
radiation through and that is absorbed by the atmosphere. The electrical
energy needed to create and maintain such a magnetic field is nearly
a billion amperes, as much as mankind has generated throughout history.
If this protective shield did not exist, life would be destroyed by
harmful radiation from time to time and might not have come into existence
at all. But as Press and Siever point out, Earth's core is exactly designed
to keep the planet safe.
In other words, there is a special purpose as stated in the Qur'an:
We made the sky a persevered and protected roof yet
still they turn away from Our Signs. (Surat al-Anbiya: 32)
The Fitness of the Atmosphere
As we have seen, Earth's physical features--mass, structure, temperature
and so on-are "just right for life". Such features alone are not enough
to allow life to exist on Earth however. Another vital factor is the
composition of the atmosphere.
We noted above how science-fiction movies sometimes mislead people.
One example of how they do this is how easily space travelers and explorers
come across planets with breathable atmospheres: they seem to be lying
all over the place. If we could explore the real universe, we'd discover
that this isn't true at all: the possibility of another planet's having
an atmosphere that we could breathe is most unlikely. That's because
the atmosphere of Earth is specially designed to support life in a number
of crucial ways.
The
atmosphere of Earth is composed of 77% nitrogen, 21% oxygen, and 1% carbon
dioxide. Let's start with the most important gas: oxygen. Oxygen is vitally
important to life because it enters into most of the chemical reactions
that release the energy that all complex life-forms require.
Carbon compounds react with oxygen. As a result of these reactions,
water, carbon dioxide, and energy are produced. Small "bundles" of energy
that are called ATP (adenosine triphosphate) and are used in living
cells are generated by these reactions. This is why we constantly need
oxygen to live and why we breathe to satisfy that need.
The interesting aspect of this business is that the percentage of oxygen
in the air we breathe is very precisely determined. Michael Denton writes
on this point:
Could your atmosphere contain more oxygen
and still support life? No! Oxygen is a very reactive element. Even the
current percentage of oxygen in the atmosphere, 21 percent, is close to
the upper limit of safety for life at ambient temperatures. The probability
of a forest fire being ignited increases by as much as 70 percent for
every 1 percent increase in the percentage of oxygen in the atmosphere.60

Even a 5% increase in the amount of oxygen in our planet's atmosphere
would result in fires that would destroy much of its forests. |
According to the British biochemist James Lovelock:
Above 25% very little of our present
land vegetation could survive the raging conflagrations which would destroy
tropical rain forests and arctic tundra alike... The present oxygen level
is at a point where risk and benefit nicely balance.61
That the proportion of oxygen in the atmosphere remains at this precise
value is the result of a marvelous "recycling" system: Animals constantly
consume oxygen and produce carbon dioxide, which, for them, is not breathable.
Plants do just the opposite: they take in carbon dioxide, which they
need to live, and release oxygen instead. Thanks to this system, life
goes on. Plants release millions of tons of oxygen into the atmosphere
every day.
Without the cooperation and balance of these two different groups of
living things, our planet would be unlivable. For example, if living
things only took in carbon dioxide and released oxygen, the earth's
atmosphere would support combustion much more easily than it does and
even a tiny spark could set off enormous fires. Similarly, if both took
in oxygen and released carbon dioxide, life would eventually die out
when all the oxygen had been used up.
In fact, the atmosphere is in a state of equilibrium in which, as Lovelock
says, risk and benefit are nicely balanced.
Another finely-tuned aspect of our atmosphere is its density, which
is ideally suited for us to breathe.
The Atmosphere and Respiration
We breathe every moment of our lives. We continuously take the air
into our lungs and let it out. We do it so much that we might think
of it as normal. In fact, respiration is quite a complex process.
Our bodily systems are so perfectly designed that we don't need to
think about breathing. Our body estimates how much oxygen it needs and
arranges for the delivery of the right amount whether we're walking,
running, reading a book, or sleeping. The reason breathing is so important
to us is that the millions of reactions that must constantly take place
in our bodies to keep us alive all require oxygen.
Your ability to read this book is thanks to the millions of cells in
the retina of your eye constantly being supplied with oxygen-derived
energy. Similarly, all the tissues of our bodies and the cells forming
them get their energy from the "burning" of carbon compounds in oxygen.
The product of this burning-carbon dioxide-must be discharged from the
body. If the level of oxygen in your bloodstream drops to low, the result
is fainting; and if the absence of oxygen persists for more than a few
minutes, the result is death.
And that's why we breathe. When we inhale, oxygen floods into about
300 million tiny chambers in our lungs. Capillary veins attached to
these chambers absorb the oxygen in a twinkling and convey it first
to heart and then to every other part of our body. The cells of our
body use this oxygen and release carbon dioxide into the blood, which
conveys it back to the lungs where it is expelled. The whole thing takes
less than half a second: "clean" oxygen comes in and "dirty" carbon
dioxide goes out.
You might be wondering why there are so many (300 million) of those
little chambers in the lungs. They're there to maximize the surface
area that is exposed to the air. They're carefully folded up to occupy
as little space as possible; if they were unfolded, the result would
be enough to cover a tennis court.
There is another point here that we need to keep in mind. The chambers
of the lungs and the capillaries connecting to them are designed so
small and perfectly in order to increase the rate at which oxygen and
carbon dioxide are exchanged. But that perfect design depends on other
factors: the density, viscosity, and pressure of air must all be right
in order for the air to move properly in and out of our lungs.
At sea level, air pressure is 760 mm of mercury and its density is
about 1 gram/liter. Again at sea level, its viscosity is nearly 50 times
that of water. You might think these numbers unimportant but they are
vital for our lives because, as Michael Denton notes:
The overall composition and general
character of the atmosphere-its density, viscosity, and pressure, etc--must
be very similar to what it is, particularly for air-breathing organisms.62
When we breathe, our lungs use energy to overcome a force called "airway
resistance". This force is the result of the resistance of air to movement.
Owing to the physical properties of the atmosphere however, this resistance
is weak enough that our lungs can take air in and let it out with a
minimum expenditure of energy. If air resistance were higher, our lungs
would be forced to work harder to enable us to breathe. This can be
explained by an example. It easy to draw water into the needle of an
injector but drawing honey in is much more difficult. The reason is
that honey is denser than water and also more viscous.
If the density, viscosity, and pressure of air were higher, breathing
would be as difficult as drawing honey into a needle. Someone might
say "That's easy to fix. We'll just make the hole of the needle larger
to increase the rate of flow." But if we did that in the case of the
capillaries in the lungs, the result would be to reduce the size of
the area in contact with air, with the result that less oxygen and carbon
dioxide would be exchanged in the same amount of time and the respiratory
needs of the body would not be satisfied. In other words, the individual
values of air's density, viscosity and pressure must all fall within
certain limits in order for it to be breathable and those of the air
we breathe do exactly that.
Michael Denton comments on this:
It is clear that if either the viscosity
or the density of air were much greater, the airway resistance would be
prohibitive and no conceivable redesign of the respiratory system would
be capable of delivering sufficient oxygen to a metabolically active air-breathing
organism... By plotting all possible atmospheric pressures against all
possible oxygen contents, it becomes clear that there is only one unique
tiny area... where all the various conditions for life are satisfied...
It is surely of enormous significance that several essential conditions
are satisfied in this one tiny region in the space of all possible atmospheres.63
The numerical values of the atmosphere are not only necessary for us
to breathe but are also essential for our Blue Planet to stay blue.
If sea-level atmospheric pressure were much lower than its present value,
the rate of water vaporization would be much higher. Increased water
in the atmosphere would have a "greenhouse effect" trapping more heat
and raising the average temperature of the planet. On the other hand,
if the pressure were much higher, the rate of water vaporization would
be less, turning large parts of the planet into desert.
All these finely-tuned equilibriums indicate that our atmosphere has
been deliberately designed precisely so that life on Earth can exist.
This is the reality discovered by science and it shows us again that
the universe is not just an accidental jumble of matter. Undoubtedly
there is a Creator ruling the universe, shaping matter as He wants it
to be, and reigning over the galaxies, stars and planets under His sovereignty.
That supreme power, as the Qur'an tells us, is Allah, Lord of the whole
universe.
And the Blue Planet on which we live is specially designed and "smoothed
out" by Allah for people as stated in the Qur'an. (Surat
an-Naziat 30) There are other verses revealing that Allah has
created Earth for mankind to live in:
It is Allah who made the earth a stable home for you
and the sky a dome, and formed you, giving you the best of forms, and
provided you with good and wholesome things. That is Allah, your Lord.
Blessed be Allah, the Lord of all the worlds. (Surah Ghafir: 64)
It is He Who made the earth submissive to you, so walk
its broad trails and eat what it provides. The Resurrection is to Him.
(Surat al-Mulk: 15)
The Equilibriums that Make Life Possible
The things we have mentioned so far are just a few of the delicate
equilibriums that are essential for life on Earth. Examining the earth,
we can make the list of the "essential factors for life" a long as we
please. The American astronomer Hugh Ross has made a list of his own:
Surface Gravity;
- If stronger: atmosphere would retain too much ammonia and methane
- If weaker: planet's atmosphere would lose too much water
Distance From Parent Star;
- if farther: planet would be too cool for a stable water cycle
- if closer: planet would be too warm for a stable water cycle
Thickness of crust;
- if thicker: too much oxygen would be transferred from the atmosphere
to the crust
- if thinner: volcanic and tectonic activity would be too great
Rotation period;
-If longer: diurnal temperature differences would be too great
-If shorter: atmospheric wind velocities would be too great
Gravitational interaction with moon;
- If greater: tidal effects on the oceans, atmosphere, and rotational
period would be too severe
- If less: orbital obliquity changes would cause climatic instabilities
Magnetic Field;
- If stronger: electromagnetic storms would be too severe
- If weaker: inadequate protection from hard stellar radiation
Albedo (Ratio of Reflected light to total amount
falling on surface);
- If greater: runaway ice age would develop
- If less: runaway greenhouse effect would develop
Oxygen to nitrogen ratio in the atmosphere;
- if larger: advanced life functions would proceed too quickly
- if smaller: advanced life functions would proceed too slowly
Carbon dioxide and water vapour levels in atmosphere;
- if greater: runaway greenhouse effect would develop
- if less: greenhouse effect would be insufficient
Ozone level in Atmosphere;
- if greater: surface temperature would be too low
- if less: surface temperatures would be too high; there would be too
much uv radiation at the surface
Seismic
Activity;
- if greater: too many life-forms would be destroyed
- if less: nutrients on ocean floors (from river runoff) would not be
recycled to the continents through tectonic uplift. 64
These are just some of the "design decisions" that had to be made in
order for life to exist and survive. But even these are enough to show
that the earth did not come into being as a result of chance nor was
it formed as a result of a lucky chain of events.
These and a myriad other details reaffirm a plain and simple truth:
Allah and Allah alone created the universe, the stars, planets, mountains,
and seas perfectly, giving life to human beings and other living things,
and placing His creations under the control of mankind. Allah and Allah
alone, the source of mercy and might, is powerful enough to create something
from nothingness.
This perfect creation of Allah is described in the Qur'an thus:
Are you stronger in structure or is heaven? He
built it. He raised its vault high and made it level. He darkened its
night and brought forth its morning light. After that He smoothed out
the earth and brought forth from it its water and its pastureland and
made the mountains firm for you and for your livestock to enjoy. (Surat
an-Nazi'at: 27-33)
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