Which best describes how air moves during convection?
a. warm air cools as it mixes with cooler, denser air.
b. warm air is displaced by cooler, denser air.
c. cool air warms as it mixes with denser air.

Me answer as many as you can what percentage more of water is used to provide us with electricity versus for irrigation? do we use more freshwater in our homes or to provide us with electricity?

Rah is completing a school project on the expansion of fast food restaurants across the united states. she finds a map that shows a clear pattern of restaurants beginning in the east and expanding west. this map was most likely created using the technology of

List 3 factors commonly used to select the location of a city