List the four reasons currents are important to
environmental science.

Ocean currents act much like a conveyor belt, transporting warm water and precipitation from the equator toward the poles and cold water from the poles back to the tropics. Thus, ocean currents regulate global climate, helping to counteract the uneven distribution of solar radiation reaching Earth's surface.

Explanation:

b. antarctica

explanation:

about 90% of the world's ice can be found on antarctica.