It's the pull of gravity on an object.
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An atom is made up of one molecule only whereas a molecule is formed from two or more atoms combined together and held together by intramolecular bones which can possibly from the same or different element. A compounds of numerous molecules held together by intermolecular bonds.
Answer:
The mitochondria
Explanation: Mitochondria (sing. Mitochondrion) are known as the powerhouse of the cell because they are responsible for the release of energy from food ,i.e, cellular respiration. This energy is released in the form of ATP (adenosine triphosphate), the energy currency of the cell.