Question

select all the correct answers. when people run quickly, they can sweat profusely. their muscles undergo movement, and the loss of energy takes place. based on this description, in which two ways is energy conserved when people run? □ heat energy is released from the body to the surroundings. □ heat energy is taken from the surroundings to the body. □ chemical energy is converted to mechanical energy that’s used for muscle movements. □ radiant energy is converted to mechanical energy that’s used for muscle movements. □ heat energy is converted to mechanical energy that’s used for muscle movements. reset next

Explanation:

1. When people run, the body's chemical energy (from food) is converted to mechanical energy for muscle movement. So "Chemical energy is converted to mechanical energy that’s used for muscle movements" is correct.
2. Also, during running, the body releases heat energy (as a by - product of metabolism) to the surroundings. So "Heat energy is released from the body to the surroundings" is correct.
3. "Heat energy is taken from the surroundings to the body" is incorrect as the body produces heat during exercise. "Radiant energy is converted to mechanical energy that’s used for muscle movements" is incorrect as muscle movement energy comes from chemical energy, not radiant. "Heat energy is converted to mechanical energy that’s used for muscle movements" is incorrect as heat energy is a by - product, not a source for muscle movement.

Answer:

• Heat energy is released from the body to the surroundings.
• Chemical energy is converted to mechanical energy that’s used for muscle movements.