Acar is moving at a fixed speed. the distance d that the car covers is the directly proportional to the time t it moves. find the speed of the car. write a formula that connects d and t. what is the coefficient of variation k equal to?

irrational, cannot

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answer: the sun

explanation:

water cycle describes the evaporation of water from earth's surface, formation of clouds and precipitation water back onto the surface of earth. seventy percent of the earth is covered with water in the form of seas and oceans. the heat of the sun causes the evaporation of water from the surface of the ocean. the water vapors rise and condense to form water droplets. the collection of these water droplets form clouds which rain down again.

the evaporation of the oceans surface water as part of the water cycle is caused by the sun