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Ksivusya [100]
4 years ago
7

SCIENCE HELP 10 POINTS!!!!

Biology
1 answer:
koban [17]4 years ago
7 0
3. naturally occurring
4. fossilized plants or air bubbles ( probably the plants tho)
5. increased 
6. the green house effect occurs naturally, it is being polluted both naturally and unnaturally, the unnatural pollution is contaminating our 'greenhouse" and that is horrible.<span />
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