Assertion :Net primary productivity is less than the gross primary productivity. Reason: Net primary productivity is equal to the gross primary productivity minus the respiration losses.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Gross primary productivity(GPP) of an ecosystem is the rate of production of organic matter during photosynthesis. Net primary productivity(NPP) is the amount of organic matter stored by producers per unit area per unit time. Gross primary productivity minus respiration losses is the net primary productivity i.e,, NPP $=$ GPP $-$ R.

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Similar questions

Q. With respect to the given assertion and reason, choose the correct option

Assertion [A]: Net primary productivity is greater than gross primary productivity.
Reason [R]: A part of net primary productivity goes waste during respiration.

Assertion (A) Addition reaction of water to but-1-ene in acidic medium yields butan-1-ol.
Reason (R) Addition of water in acidic medium proceeds through the formation of primary carbocation.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

Q. Assertion :Net primary productivity is gross primary productivity minus respiration. Reason: Secondary productivity is produced by heterotrophs.

Q. Read the assertion and reason carefully to mark the correct option out of the options given below:

(a)If both assertion and reason are true and the reason is the correct explanation of the assertion.

(b)If both assertion and reason are true but reason is not the correct explanation of the assertion.

(c)If assertion is true but reason is false.

(d) If assertion is false but reason is true.
Assertion :

N a_{2} C r_{2} O_{7}

is not a primary standard solution in volumetric analysis.

Reason :

N a_{2} C r_{2} O_{7}

is hygroscopic.

N a_{2} C r_{2} O_{7}

is not a primary standard solution in volumetric analysis.

Reason :

N a_{2} C r_{2} O_{7}

is hygroscopic.

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