Life exists on the outermost layer of the earth, called the crust. There are 7 layers of the earth (see below):
Kilometer range; layer name
Life exists on the biosphere area of Earth. In 1875, the word “biosphere” was coined by Eduard Suess. Ecology is the science of the biosphere, which can be thought of as a very think layer all over the surface of the Earth. The other spheres on Earth are the lithosphere, biosphere, and atmosphere.
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