Planet Earth
is just one of the nine planets in the family of Sun, called the solar
system.
If you start counting away from the Sun, the planet Earth comes third in
distance.
At one stage of its infancy,
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it
was in a very hot and semi gaseous state. And it looked like |
like all other planets it too has undergone many changes before reaching the
present stage.
Today, if you approach the Earth from outer space it appears to wear a fade
greenish blue color.
This is absolutely uncommon. For, no other planet in the solar system
wears this color - the color of life.
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Otherwise. it acts the same way as do the other planets. It moves round
the Sun along a certain path, called orbit, like its fellow planets. Yet,
despite all these common features compared to other planets, it is
altogether different! So different, that it is regarded as the unique body in our solar system. |
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Why so unique?
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It
is the ingredients, or, the stuff with which the earth is made up
of. For instance, the sky that displays such a variety of colors. Or, the greenish blue stretches that marks the wonderful water world - |
the oceans and seas, rivers and streams, lakes and reservoirs.
And, the atmosphere with plenty of oxygen that makes us possible
to breathe and live on along with other forms of life.
Or, the vital greeneries that are dotted with such a variety of flowers.
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And,
certainly, the amazing variety of insects and animals that make the
world celebrate |
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Strange, though, none of these are found in any of our fellow planets. And
not only in the solar system.
But also in no other star's family, or stellar system, known till date.
Now let us look a little closer look at all these.
the size and shape | the atmosphere
| the lithosphere
| the world of water | the
land