Warm water rising to the surface of the ocean and cooler water sinking

Correct

Explanation:

Cold, salty water is dense and sinks to the bottom of the ocean while warm water is less dense and remains on the surface.

metamorphism is the change of minerals or geologic texture (distinct arrangement of minerals) in pre-existing rocks (protoliths), without the protolith melting into liquid magma (a solid-state change). the change occurs primarily due to heat, pressure, and the introduction of chemically active fluids. i hoped i !

correct answer is a. and d.