CGP 4

Question 1

Conditions of a high pressure belt? why?

Answer 1

• clear skies
• no rainfall

because it has descending air which dries and clears clouds.

Question 2

Conditions of low pressure belt

Answer 2

• cloudy
• high rainfall

because it has rising air, forming clouds.

Question 3

what is the process of atmospheric circulation that trasnfers heat from the equator to the poles?

Answer 3

Heat energy by convection of Hadley cells, warm air rises at the equator, moves poleward and sinks at 30 degrees, transferring heat. Process continues through ferrel and polar cells.

Question 4

Thermohaline circulation

Answer 4

Circulation of water driven by water temperature and salinity.

Question 5

How are ocean currents created by changes to water density at the poles? What do the currents do?

Answer 5

Cold, salty water sinks, starting deep ocean currents, by thermohaline circulation. The currents transfer heat energy by moving cold water toward equator and warm water toward the poles.