hannamcbrayer1 hannamcbrayer1

31-03-2017
Biology

contestada

Please help ☁ ☂
There are ____ classes of ozone-depleting substances.

2

3

4

5

Respuesta :

dustin229 dustin229

31-03-2017

i think it is 3 i'm not sure but i'm about 70% sure

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AndrewTaggart AndrewTaggart

31-03-2017

The answer you are looking for is:
2
Hope that helps!!
Have a wonderful day!!

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