EARTH - Which planet has water?
The Earth as a planet, has evolved
slowly over the 4.5 billion years of existence. The atmosphere that we
now have, is not the same over its long evolution. The oceans
and lakes were not here when the Earth formed. Evidence shows that it
took almost 1 billion years before water was prevalent. The Earth is
so different than the other planets because of the creation of water,
which was formed with hydrogen and oxygen merged inside the Earth, and
outgassed when volcanic activity took place. Steam slowly
poured from the many volcanoes and created a planet of water.
Land configurations were not
the same as they are today. The crust has moved and shifted for
billions of years, forming mountains, valleys, and plains. Our
landscape is a result of all these interactions.
The Earth and its Moon are the most
studied of all the planets and satellites of the Solar System.