Answers

2015-05-31T15:20:39+05:30
The correct option is 
a. since if the ph value will be less it will become acidic and if it will be more it will become base 
and since water is niether a base nor acid
 
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2015-05-31T15:22:08+05:30
The pH range most conductive for life of fresh water plants and animals is
a)  6.5 - 7.5
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