Why are dissolved oxygen concentrations higher in the surface ocean than in the deep ocean at both high and low latitudes?

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?

Pegmatites are igneous rocks in which the individual minerals are very large. typically, the minerals are all light-colored quartz, feldspar and muscovite. if you were given a black and white photograph of a pegmatite in a quarry (where the rock has been blasted and broken), what physical properties could you use to identify those three minerals in this hypothetical photo? describe each mineral and the specific diagnostic properties. be specific.

Which of the following will cause an increase in the acceleration of an object? increase force decrease force increase mass decrease mass