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12 August, 06:29

Which statement best describes the law of conservation of energy?

O

A. The total energy in an open system can only increase.

B. Energy cannot be created or destroyed.

C. Energy cannot change forms.

O

O

D. The total energy in a dynamic system can only decrease.

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Answers (1)
  1. 12 August, 08:44
    0
    The correct option is B. Energy cannot be created or destroyed.

    Explanation:

    The law of conservation of energy states that energy can neither be created nor be destroyed. However, energy can change from one form to another.

    Hence, in a system energy might change forms but the total energy on Earth remains the same.

    In a food chain, most of the energy is lost as heat. But it still is a form of energy. Hence, energy is neither created nor destroyed, it only changes forms.
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