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Which shape has four congruent sides and two sets of parallel sides?
answered
Mar 30, 2021
Mathematics
middle-school
4
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3) The ozone layer in the stratosphere protects Earth from the sun's ultraviolet radiation. Where does the ozone come from? A) The ozone is released from the oceans as part of the carbon cycle. B) The
answered
Jan 20, 2021
Chemistry
middle-school
5
votes
110k
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