You Can Know You Have Eternal Life
#7 Marvelous Design implies a Marvelous Designer
(4)
Uniqueness of Planet Earth - Water
by Jim Mettenbrink
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Regarding the uniqueness of planet
Earths atmosphere and surface, we can not ignore another
basic ingredient that sustains life plain ol' water that
we often take for granted. Although water is rare in the
universe, planet Earth is about 75% water and the only known
planet with a permanent reserve of liquid water estimated
to have a volume of 340 million cubic miles.
Water in liquid form has many unique
chemical and physical properties which are necessary for life
to survive. One chemical property is the solvent characteristic
of water, making it possible for all essential nutrients needed
by life to be dissolved and absorbed. A physical property
of water is its transparency to visible light thus marine algae
performs photosynthesis below the ocean surface. Uniquely,
water expands when it freezes, preventing our ocean and lakes
from freezing from the bottom upward, thereby sustaining cold
blooded life in their depths during winter.
One of the most remarkable properties
of water is its high heat-capturing and heat-retaining capacity.
The ocean is less reflective than the land to incoming
solar rays and thereby absorbs more of the suns energy
than an equal area of land. It also takes much more heat
to raise the temperature of a unit mass of seawater by one degree
than it does for an equal mass of the continents. Since
the oceans average temperature is about 45 degrees Fahrenheit,
it will cool the land near the equator and warm the colder polar
regions. Furthermore, ocean currents caused by the earths
rotation circulate seawater and prevent the oceans near the equator
from becoming too hot and the polar seas from completely freezing.
The oceans regulate planet Earths
temperature and serve as a reservoir for some very important
chemicals. For example, most of Earths carbon dioxide
is dissolved in seawater, being in equilibrium with the atmosphere.
In the last couple centuries, large amounts of carbon dioxide
have been released via the burning of fossil fuels. Yet
the amount of carbon dioxide in the atmosphere has not significantly
increased. Most of the combustion-derived carbon dioxide
has been absorbed by the ocean.
How is it that planet Earth, with
its unique surface, atmosphere, water and oceans, unlike all
other planets, came into existence? Mere chance or design?
How is it that planet Earth alone supports life? Is
it merely by accident? Is it reasonable to conclude that
the Big Bang explosion of some self-existent gases resulted in
the universe, but with only one planet so unique that only it
supports life? Or is such orderly and unique qualities
of planet Earth indicative of intelligent planning by an intelligent
and powerful creator. And the rest of the universe merely
projects the majesty of the Creator The Psalmist of the
Bible stated The
heavens and the earth declare the glory of God.... (Psalms 19:1).
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