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Biology, 21.06.2019 16:30
Plz plz plz quick! 49 points for whoever which of the following statements about greenhouse effect is true? *life on earth is suffering because of greenhouse effect *the greenhouse effect is caused by human activity *all greenhouse gases are harmful *life on earth would not exist without the greenhouse effect
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Biology, 22.06.2019 06:30
If animal agriculture was eliminated, how much grain would become available for human consumption?
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If microscopes that could take closer looks were in existence, why do you think it took so long for...
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