For year's man have studied the earth and the atmospheres to understand how life only exists on earth. There are many factors that have to work together in order for this to happen. The study of the earth and its structure is called Geology. Earth is the third planet from the sun and the fifth largest. Planet earth is only a tiny part of the universe. Earth is the only planet whose English name does not derive from Greek/Roman mythology. Earth is the densest major body in the solar system.
The crust is quite thin, is about 22 miles thick and beneath the continents and about only 3 miles thick beneath the ocean. Its thickness beneath the mountain is about 40 miles thick. The inner core and mantle are plastic. The mantle is the middle layer of the earth. It is about 1800 miles thick and makes up the largest portion of the earths interior. Between the crust and the mantle there is a boundary called the Moho? The Moho was discovered by the creation geologist. Like the......
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