History question help

asked Dec 14, 2020 199k views

2 votes

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3 votes

Answer:

D.?

Step-by-step explanation:

Netsplit answered Dec 16, 2020

7.3k points

5 votes

Answer:

Step-by-step explanation:

he is studying pollution and the humans and environment study deals with that

Kfirba answered Dec 21, 2020

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