A half of the the planet which is seperated into the northern and southern hemisphere.
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The Ice Ages shaped and sculpted the face of the Earth. Continents that were once connected by land bridges had shifted and separated during the Ice Ages. Therefore without the Ice Ages, Earth would look significantly different, and some of the natural beauties like Niagra Falls would not exist.
It regulates the planets temperatures
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your answer is d. the capability of being believed; trustworthiness
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this is the definition of it - the quality of being trusted and believed in.
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Mercury has the shortest rotation, because it is the closest to the sun, and as such it makes a smaller circle of orbit around it.
hope this helps
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