Earth Science 8. Solar Power unit 8

_____ energy powers the water cycle.

Solar

Approximately how much of the Sun's energy is currently reflected by Earth's atmosphere?

30%

process of heat transfer by the circulation or movement of a liquid or a gas

convection

Any winds, like the jet stream, occur because of _____.

differences in temperature

moisture in the air

humidity

Water vapor _____.

is moisture in the air or humidity, comes from evaporation of water, traps heat, condenses to make clouds.

fast moving stream of wind where cold, polar air meets warm air from the equator

jet stream

Tropical and polar climate zones are very distinct. This is because _____.

the Sun's rays are more concentrated near the equator.

During summer, the Northern Hemisphere of Earth is _____.

tilted toward the sun.

A low-pressure belt means the air is _____.

warm and rising

Very humid areas are usually _____ in temperature.

warmer