The of rain water , is approximately :
6.5
7.5
5.6
7.0
Water pollution -
Contamination of water bodies that is unfit for human use and growth of aquatic biota.
-
Global warming -
Increase in average air temperature near the earth’s surface and melting of polar ice caps.
- wherein
Due to over-emittance of greenhouse gases.
Point sources of water pollution. -
Which arises from single, identifiable sources .
- wherein
Pipe, ditch
The fact is , pH of rain water approximate 5.6
As we know that
sodium does not show variable oxidation states .Oxidation states of matels are
6.5
Option 2)7.5
Option 3)5.6
Option 4)7.0
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