Freezing. The greenhouse effect is the way how earth is kept warm , as the heat radiation is trapped through the gasses ( gasses reflect the radiation back to earth) without the green house effect, the earth I assume would be all "iced up"and " bare and bold" up, and life (as we know it ) would not survive ( some others forms of life may take place but we never know...)
Personal opinion , free to accept other ideas .
Answer: D. Individuals may now have their DNA analyzed to determine ancestry.
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Answer:
I would say False. But not 100% sure.
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Hope this helps you in some way.
