Https://www3.epa.gov/climatechange/kids/impacts/effects/ecosystems.html
this link might help you
Examples
High respiration rates from mass global population
Deforestation
The answer to this question is b carpel that's the answer
Answer:
1,3,4
A dichotomous key uses questions or statements to help identify organisms, it also uses characteristics in it's questions ( that may be yes-no) and statements to help separate organisms from one another.
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Explanation: