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Solution


Q.

Assertion: In spite of not having nervous system, plants can sense things.
Reason: Plants can sense things with the help of hormones.
1 Both assertion and reason are correct and reason is the correct explanation of assertion.  
2 Both assertion and reason are correct but reason is not the correct explanation of assertion  
3 Assertion is true but Reason is false.  
4 Assertion is false but Reason is true.  

Ans.

(1)

Plant hormones help them to sense changes in the environment even if they do not have eyes, ears or nose. Thus, both assertion and reason are correct and reason is the correct explanation of the assertion.