Question

Air currents are caused by differences in temperature, which are created by


a
energy from the Sun heating Earth.
b
energy from the Moon heating Earth.
c
energy from volcanic eruptions on Earth's surface.
d
energy from geological processes within Earth's core.

Answer 1

a) energy from the Sun heating Earth.

Answer 2

A tropical rain forest is able to meet the needs of many plants, animals, insects, and birds because temperatures are

a
warm all year, and there is a lot of rainfall.
b
warm all year, and there is little rainfall.
c
cold all year, and there is a lot of rainfall.
d
cold all year, and there is little rainfall.

Answer 3

a) warm all year, and there is a lot of rainfall.