Most earthquakes are produced by the rapid release of which kind of energy stored in rock subjected to great forces?
a. kinetic
b. thermal
c. elastic
d. mechanical

The correct answer is (c.) elastic. Most earthquakes are produced by the rapid release of elastic energy that was stored in rocks that have been subjected to great forces. This makes the rock's energy to exceed and eventually breaks the rock due to the vibrations of an earthquake.

Ithink the answer is d i hope it my friend message me if i’m wrong and i’ll change my answer and fix it for you

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.