The last time carbon dioxide (CO2) levels were as high as today was over 3 million years ago during the Pliocene epoch. At that time, global temperatures were 2
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When you look at objects under high magnification what happens to the brightness?


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When observing objects under high magnification, mantra88 the brightness of the image may decrease due to the limited amount of light entering the microscope objective.
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What species do modern human beings fall into?


Asked by Anonymous



Modern human beings belong to the species Homo sapiens.