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Assertion: Amount of organic matter synt...

Assertion: Amount of organic matter synthesized by producers per unit time and per unit area during the process of photosynthesis referred to as net primary productivity.
Reason: Primary productivity is usually high and sustained throughout the year in temperate areas due to abundance of sunlight.

A

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

B

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

C

c) assertion is true but reason is false.

D

d) both assertion and reason are false.

Text Solution

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The correct Answer is:
To solve the question regarding the assertion and reason provided, we will analyze each statement step by step. ### Step 1: Understanding the Assertion The assertion states that "the amount of organic matter synthesized by producers per unit time and per unit area during the process of photosynthesis is referred to as net primary productivity." **Analysis**: - The correct term for the total organic matter synthesized by producers (plants) through photosynthesis is called **Gross Primary Productivity (GPP)**. - **Net Primary Productivity (NPP)** is actually the GPP minus the organic matter used by the plants for respiration. **Conclusion**: The assertion is **false**. ### Step 2: Understanding the Reason The reason states that "primary productivity is usually high and sustained throughout the year in temperate areas due to abundance of sunlight." **Analysis**: - In temperate regions, the primary productivity is not high and sustained throughout the year. - These areas experience seasonal changes, including lower sunlight during winter months, which affects productivity. - In contrast, tropical areas have more consistent sunlight and higher primary productivity throughout the year. **Conclusion**: The reason is also **false**. ### Final Conclusion Both the assertion and the reason are **false**.
To solve the question regarding the assertion and reason provided, we will analyze each statement step by step. ### Step 1: Understanding the Assertion The assertion states that "the amount of organic matter synthesized by producers per unit time and per unit area during the process of photosynthesis is referred to as net primary productivity." **Analysis**: - The correct term for the total organic matter synthesized by producers (plants) through photosynthesis is called **Gross Primary Productivity (GPP)**. - **Net Primary Productivity (NPP)** is actually the GPP minus the organic matter used by the plants for respiration. ...
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