Plants play a crucial role in the carbon cycle because they : A. do not release carbon dioxide during cellular respiration. B. Allow carbon to enter an ecosystem through photosynthesis. C. Have special bacteria that live in their root systems. D. Are chemically converted into fossil fuels when burned.

How do temperature and salinity affect deepwater currents? 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. 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 density differences that cause dense deepwater currents to flow toward the equator where they displace less dense, warmer water above them. they equalize the forces on undersea currents caused by the coriolis effect as they replace more dense water with less dense water.