True/False. Decide if each statement is true or false, and write true or false in the blank
6. The hydrosphere is the air that surrounds the earth.
7. The mantle is the layer of iron-rich minerals
surrounding the earth's core.
8. The asthenosphere is the innermost layer of
the earth.
9. The lithosphere is the outermost layer of the mantle,
including the earth's crust.
10. The crust is the outermost layer or surface of
the earth.