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dusya [7]
3 years ago
6

Please help me out asap

Chemistry
2 answers:
Anarel [89]3 years ago
7 0

Factory chimney is considered as a point source by US EPA.

So ans is A.


Yuki888 [10]3 years ago
4 0

The photo shows a factory smokestack - it is considered as a point source. So the answer is A.

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decreased by a factor of 10

Explanation:

pH is defined in such a way that;

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Given that pH is changed from 1 to 2,

By rearranging the above formula , we get 10−pH = H

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