Why is surface water near the Equator not likely to sink down into the deep ocean?
a. Because water near the Equator is much warmer than the deep ocean so there is no density difference between the surface and deep ocean
b. Because water near the Equator is much warmer than the deep ocean so the surface water is much less dense and will not sink
c. Because water near the Equator is saltier than the deep ocean so the surface water is much more dense and will not sink