When observing the two diagrams, what is a concept shared by both?

Convection

Explanation:

Convection refers to the transfer of heat by the actual movement of the heated molecules from the hot parts to the cooler parts.

Thus, the two diagrams show illustrate transfer of heat by the movement of molecules of a fluid.

This mode of heat transfer is known as convection. It is the concept illustrated by both diagrams.

i wanna say it’s between b and d, leaning more towards b.

kepler used the data from tycho blahe (his mentor) to construct the laws of planetary motion.