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explanation: in any substance/object, the particles inside it (atoms/molecules) constantly move in random directions and with random speeds (this motion is called brownian motion). as a result, the particles have some kinetic energy (which is proportional to the temperature of the substance).

explanation:

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the closer the planet is to the sun, the larger the gravity

answer a fan shaped mass of sediment deposited at the base of a mountain front do to an abrupt change in stream gradient;