The circular current of air in a room with a hot radiator opposite a cold window, known as a(n) _____current, is caused by the difference in temperature between the opposite ends of the room. 

What is the term used to describe the total quantity (or concentration) of dissolved inorganic solids in water? 

Let X= {1, 2, 3, 4, 5} and Y= {u, v, w, x, y}, and define h: X →Y as follows: h(1) = v, h(2) = x, h(3) = v, h(4) = v, h(5) = y. If A= {1, 2}, C= {x, v}, D= {w}, and E= {w, y}. Match each option below to the correct solution.

The solar heating of Earth varies with latitude, due mostly to _____. 

Upwelling areas are _____. 

Heat capacity is a measure of the heat required to _____. 

_____ currents are the slow, deep currents that affect the vast bulk of seawater beneath the pycnocline. 

The angular shape of the water molecule makes it electrically asymmetrical, or _____.

The Hadley cells in the Southern Hemisphere produce ____ along the surface as air moves toward the equator. 

Because density is largely a function of temperature and salinity, the movement of water due to differences in density is called _____.