Earth has a mass of 5.98x 1024kg, and the moon has a mass of 7.35x1022kg. the noon orbits Earth at an average distance of 3.84x 108m. Calculate the force of gravity between Earth and the moon.

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.

C. it comes from the core of the earth.

Phagocytes contain digestive enzymes to facilitate the process of phagocytosis