Which of the following is not a way humans have directly impacted coral reefs?

How did the discovery of the rhesus factor affect society? o more patients died from having a transfusion with the wrong rhesus factor 0 new treatments during pregnancy could prevent harm to the developing child. o less donated blood could be used in the treatment of patients. the number of blood types was reduced by half

Are the layers of rock above and below the coal older or younger?

What does the splanchnic nerve innervate?