Why does an animal inhale? A) To get rid of cellular waste like oxygen from the body.
B) So cells can use the oxygen in the air to produce energy.
C) To get rid of cellular waste like carbon dioxide from the body.
D) So cells can use the carbon dioxide in the air to produce energy.

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.

b . streams flow into shallow areas.

f . movement of earth’s crust creates low areas that fill with water.