Age, size and composition,
the atmoshpere is the air and the hydrosphere is where our water is. which is what we need in order to survive.
Answer: a. greatest at the equator and drops as you move farther north or south
Explanation: Biodiversity is not evenly distributed on Earth. Terrestrial biodiversity is normally greater near the equator, (is richest in the tropics) and it lowers as you move towards the poles.
Tropical forest biodiversity cover less than 10 percent of earth's surface, and contain about 90 percent of the world's species.
The earth´s atmosphere protects Earth from meterorite impacts.
The Volga River is the main water way in western Europe. Glad to help :)
