One complete revolution on Earth around the sun takes about 362.25 days or 1 year. The 1/4 or the quarter, 25 is considered as the leap year.
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Every river is part of a larger system—a watershed, which is the land drained by a river and its tributaries. Rivers are large natural streams of water flowing in channels and emptying into larger bodies of water.A tributary is a smaller stream or river that joins a larger or main river.
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hardness, luster, color, streak, specific gravity, cleavage, fracture, and tenacity.
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