Biology, 27.11.2019 16:31, monica1400
The permian-triassic extinction 250 million years ago wiped out about ninety percent of earth's animal species. some scientists are predicting a sixth mass extinction in the future, due to
a) acid rain.
b) air pollution.
c) global warming.
d) earthquake activity.
Answers: 3
Biology, 22.06.2019 03:00, moneyyfletcher
Question#29: why does the tropical ocean have a greater temperature range than the temperate ocean?
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Biology, 22.06.2019 21:30, sadiejane1125
What is the name of the idea that energy cannot be created nor destroyed
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