Assertion In open water zone upto the depth to which light can penetrate, called photic zone. Reason The photic zone is categorised into euphotic and disphotic zone.

Question

Assertion In open water zone upto the depth to which light can penetrate, called photic zone. Reason The photic zone is categorised into euphotic and disphotic zone. (A) Both Assertion, and Reason are true and Reason is the correct explanation of Assertion (B) Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion (C) Assertion is true, but Reason is false (D) Both Assertion and Reason are false

Tardigrade Admin · Accepted Answer

The upper part of photic zone with abundent light is called euphotic zone, here the (P/R) ratio is more than 1 . The lower region is called disphotic zone, here the (P/R) ratio is less than 1 .

Q. Assertion In open water zone upto the depth to which light can penetrate, called photic zone.
Reason The photic zone is categorised into euphotic and disphotic zone.

Both Assertion, and Reason are true and Reason is the correct explanation of Assertion

Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion

Assertion is true, but Reason is false

Both Assertion and Reason are false

The upper part of photic zone with abundent light is called euphotic zone, here the $\frac{P}{R}$ ratio is more than $1$ . The lower region is called disphotic zone, here the $\frac{P}{R}$ ratio is less than $1$ .

Q. Assertion In open water zone upto the depth to which light can penetrate, called photic zone. Reason The photic zone is categorised into euphotic and disphotic zone.