Earths Spheres Flashcards
1
Q
What is the biosphere
A
A layer of the planet where life exists
2
Q
What is the atmosphere
A
A layer of gases that extends from the surface of the Earth into space
3
Q
What is the lithosphere
A
Outer rocky layer of the earth, composed of crust and upper mantle
4
Q
What is the hydrosphere
A
A sphere that contains all of the water on Earth. more than 70% of Earth is water
5
Q
What is the frozen part of hydrosphere called
A
cryosphere
