15. As the protons move down their concentration gradient in the electron
transport chain, what's happening with the electrons in the chain?
O A. They convert ADP to ATP
O B. They combine with oxygen to form water
O C. They take a phosphate group off ATP
O D. They split apart from oxygen

When new rock is added to an oceanic ridge, the magnetized strips on either side of the ridge are evidence of sea-floor spreading. this is because the rocks on the two sides of the ridge o are equal in width and in polarity are polar opposites oare magnetized vary in width but are equal in polarity