Question

Observe the given image of the `Biogas (Gobar Gas) Plant' and identify its benefit:

• A. It increases the use of chemical fertilizers.
• B. It is a clean, non-conventional source of energy.
• C. It causes high air pollution.
• D. It is an expensive urban energy source.

Hint:

Biogas plants provide a dual benefit: \textbf{Energy} (biogas for cooking/lighting) + \textbf{Manure} (organic slurry for farming). This makes them highly suitable for rural India's sustainable development.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
The image shows a traditional fixed-dome Biogas (Gobar Gas) plant, which is a common feature in rural India. It converts animal waste (dung) into usable gas through anaerobic decomposition.

Step 2: Detailed Explanation:
A Biogas Plant (Gobar Gas Plant) is a non-conventional, renewable source of energy. It works by decomposing animal dung and organic waste in the absence of oxygen to produce methane-rich biogas, which is used as a cooking fuel. Its key benefits are:
- It is a clean, non-conventional source of energy that reduces dependence on fossil fuels.
- It provides organic manure (slurry) as a by-product, which is a natural fertilizer, thereby reducing the need for chemical fertilizers.
- It helps improve rural sanitation and reduces indoor air pollution from traditional firewood chulhas.
Options (A), (C), and (D) are factually incorrect.

Step 3: Final Answer:
The benefit of a Biogas Plant is that it is a clean, non-conventional source of energy.