An equal-tangent crest vertical curve is designed with a PVI at station 110+00 (elevation 927.2 ft) and a PVC at station 107+43.3 (elevation 921.55 ft). If the high point is at station 110+75.5, what is the design speed of the curve?

Ibelieve the answer is b

The answer is water molecules are split.cellular respiration and photosynthesis are complement  reactions to each other. these are reverse reactions. in cellular respiration glucose and oxygen yield water and carbon dioxide. so, when respiration begins,  glucose molecules are split. in the opposite reaction - in photosynthesis, carbon dioxide and water yield glucose and oxygen. thus,  when respiration begins, water molecules are split.

During the 1800s. hope this !