Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason

Assertion A: Biomass is considered as carbon neutral.

Reason R: The amount of carbon they emit is equal to the amount of carbon they have consumed during their lifetime.

In light of the above statements, choose the most appropriate answer from the options given helow

The correct option is: Both A and R are correct, and R is the correct explanation of A.

Let us break down the logical reasoning behind both the statements to understand their relationship step-by-step:

1. Analyzing Assertion A:
Biomass refers to organic materials derived from plants and animals (such as wood, agricultural crops, and organic waste) that can be used as a fuel source. It is widely considered to be carbon neutral because its utilization as an energy source is cycle-based, meaning it does not add new carbon to the global carbon cycle. Thus, Assertion A is correct.

2. Analyzing Reason R:
During their lifetime, plants grow by absorbing carbon dioxide (CO₂) from the atmosphere through the process of photosynthesis, converting it into biomass. When this biomass is later burned, fermented, or decomposed to produce energy, the carbon stored within it is released back into the atmosphere as carbon dioxide. Because the amount of carbon released upon combustion is equal to the amount of carbon the plant absorbed from the atmosphere while it was growing, the net release of carbon dioxide is zero. Therefore, Reason R is correct.

3. Evaluating the Connection:
The reason biomass is classified as carbon neutral (Assertion A) is precisely because the carbon emitted during its combustion matches the carbon sequestered during its growth phase (Reason R). Since this closed-loop cycle is the fundamental mechanism that defines carbon neutrality, Reason R is the correct explanation of Assertion A.