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romanna [79]
4 years ago
14

What has happened to the levels of CO2 in our atmosphere over the past 100 years?

Biology
1 answer:
prohojiy [21]4 years ago
4 0
It has increase.

Hope this helps
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Explanation:

The situation described best illustrated the fact that the disturbance of natural ecosystem by humans can have unpredictable negative impacts.

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<em>Option d is incorrect because alteration of the ecosystem does not always end up in the pollution of the ecosystem and loss of finite resources.</em>

<u>While human alteration of the natural ecosystem often have long term negative impacts, many of these impacts can not be predicted until they happen. This makes option b to be more complete than option a.</u>

The correct option is b.

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tresset_1 [31]
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sineoko [7]
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