Muscles convert chemical energy into
a) light energy.
b) nuclear energy.
c) mechanical energy.
d) electromagnetic energy.

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The answer here would be C, mechanical energy.

Explanation:

Muscles convert chemical energy into mechanical energy. Mechanical energy is associated with the motion and position of an object, and the muscles use the energy to move.

a boiling water reactor does not boil the water. a pressurized water reactor boils the water faster. a pressurized water reactor is heated directly by the core. a pressurized water reactor does not use fission.

elements make up everything, and they combine to make compounds.

the answer is c