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GAUTAM KUMAR

· started a discussion

· 1 Months ago

from gautam (Question:593814.3)

why option A is true and D not true

Question:
DIRECTIONS: Each of these questions has an Assertion (A) and a Reason (R).

Assertion (A) A salt water fish drinks sea water whereas a fresh water fish never drinks water.

Reason (R) A salt water fish is hypertonic to its environment while a fresh water fish is not hypertonic to its environment.


Options:
A) if both ‘A’ and ‘R’ are true and ‘R’ is the correct explanation of A’
B) if both A’ and ‘R’ are true but ‘R’ is not the correct explanation of A’
C) if ‘A’ is true but ‘R’ is false 
D) if ‘A’ is false but ‘R’ is true
Solution:
Ans (a) Assertion is true, and this happens because a salt water fish is hypertonic to its environment while a fresh water fish is not hypertonic to its environment.

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