Sources of heat from inside earth is radioactive decay and residual heat.
<span>Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products.
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Answer: Revolves
Explanation: The revolution of the earth refers to the movement of the earth around the sun.
Thigmotropism is a plant's response to contact with a solid object<span>.</span>