Explain how climbing a mountain is similar to hiking from the equator to one of the poles

Iflow from a warmer object to a cooler object until both objects are the same temperature what am i?

Cells in the nervous system have a potential difference of 70 mv across the cell membrane separating the interior of the cell from the extracellular fluid. this potential difference is maintained by ion pumps that move charged ions across the membrane. is this an emf? select the correct answer and explanation. 1)no. the ion pumps cannot separate charges; thus, they cannot create a potential difference. 2)yes. the ion pumps cannot separate charges, but they still can create a potential difference. 3)yes. the ion pumps can actively separate charge; thus, they can create a potential difference. 4)no. the ion pumps can separate charges, but they cannot create a potential difference.

An element becomes a positively charged ion when itloses protons. loses electrons. gains electrons. gains neutrons.