Chemistry
The increasing abundance of green house gases in atmosphere has led to the following effect except

Depletion of ozone layer in the stratosphere
Global warming
Carbon dioxide ferilization effect
Oxygen fertilization effect

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Chemistry
Assertion (A) : Synthetic detergents can lather wen in hard water.Reason (R) : Synthetic detergents form soluble calcium and magnesium salts with hard water.

A is true but R is false
A is false but R is true
Both A and R is true but R is not a correct explanation of A
Both A and R is true and R is the correct explanation of A

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