Problem: Local sea levels change for many local reasons, such as the upward or downward motion of local land. But, if you average over the whole ocean, what is happening? Group of answer choices The level of the sea is going up, mostly because the winds have changed, and this blows more water against the land. The level of the sea is going up, mostly because global warming is causing land ice to melt and release water that reaches the ocean, and because warming is also causing ocean water to expand. The level of the sea is going down, mostly because the winds have changed, and this blows more water away from the land. The level of the sea is not changing at all. The level of the sea is going down, mostly because global warming is causing snowfall on land ice to increase. Need Assignment Help?