The energy value listed for foods refers to the a. total amount of chemical energy in the food. b. amount of energy available as fuel for the body. c. total nutritional value of the food. d. amount of carbohydrates

B. Amount of energy available as fuel for the body.

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so, when you eat, your teeth chew and grind food into smaller pieces. this is mechanical digestion. then reactions aided by digestive enzymes break down large food molecules into smaller molecules. this is chemical digestion. the two processes change the food into simpler substances that can be used by the body for raw materials and energy.

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tobey

surface mining destroys mountain tops, landscapes, forests and wildlife habitats. on top of that, it leads to soil erosion and destruction of agricultural land. the landscape changes can also disrupt river channels and streams, which leads to flooding. which, can destroy plant life and other animals as well.

explanation: