Which of the following statements about air pollution is not true?
a. air pollution is caused by natural and human processes.
b. carbon monoxide and sulfur oxides are common air pollutants.
c. natural components of air, like carbon dioxide, cannot be considered air pollutants.
d. primary and secondary pollutants are harmful to human health and the environment.

How do temperature and salinity affect deepwater currents? question 15 options: as temperatures and salinity levels of water increase, the water rises to the surface where it creates currents as it moves to colder regions. they create changes in wind direction, moving denser water in the same direction as the wind and causing the deepwater circulation patterns found in the ocean. they equalize the forces on undersea currents caused by the coriolis effect as they replace more dense water with less dense water. they create density differences that cause dense deepwater currents to flow toward the equator where they displace less dense, warmer water above them.