Q1. [1] medium exam-ready
Assertion (A): Biogas is considered a far more efficient use of cattle dung than burning it as fuel.
Reason (R): Biogas production improves the quality of manure and prevents the loss of trees and manure that results from burning fuel wood and dung cakes.
Options:
(A) Both (A) and (R) are true and (R) is the correct explanation of (A).
(B) Both (A) and (R) are true, but (R) is not the correct explanation of (A).
(C) (A) is true, but (R) is false.
(D) (A) is false, but (R) is true.
- A Both (A) and (R) are true and (R) is the correct explanation of (A).
- B Both (A) and (R) are true, but (R) is not the correct explanation of (A).
- C (A) is true, but (R) is false.
- D (A) is false, but (R) is true.
Generated by claude-sonnet-4-6 · 2026-06-26 13:32 · grounding rag
Model Answer
(A) Both (A) and (R) are true and (R) is the correct explanation of (A).
Explanation
The textbook states directly: "Biogas is by far the most efficient use of cattle dung. It improves the quality of manure and also prevents the loss of trees and manure due to burning of fuel wood and cow dung cakes." — R correctly and completely explains why A is true.