During the transfer of energy from one tropic level to the next tropic level around 90% of the total energy is lost in the metabolic processes in the form of heat. Hence only about 10% of the total energy can only be transferred from one tropic level to the next tropic level.
B . By altering the enzyme's shape and structure due to a change in its optimal pH.
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The correct answer is From east to west
Volcanic eruption would change the surface the quickest