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Social Science (087) — AI-generated practice question

AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.

Q1. [1] medium exam-ready
Assertion (A): Pulses are mostly grown in rotation with other crops such as wheat or rice. Reason (R): Pulses are leguminous crops that help restore soil fertility by fixing atmospheric nitrogen, reducing the need for chemical fertilisers in subsequent crops.
  1. A Both A and R are true, and R is the correct explanation of A.
  2. B Both A and R are true, but R is NOT the correct explanation of A.
  3. C A is true but R is false.
  4. D A is false but R is true.
Generated by claude-sonnet-4-6 · 2026-06-26 13:30 · grounding rag
Model Answer

Answer: A

Both A and R are true, and R is the correct explanation of A. Pulses are leguminous crops that fix atmospheric nitrogen, restoring soil fertility, which is why they are grown in rotation with crops like wheat or rice.

Source: Agriculture, Major Crops (Pulses section)

Explanation

The textbook states directly: "Being leguminous crops, all these crops except arhar help in restoring soil fertility by fixing nitrogen from the air. Therefore, these are mostly grown in rotation with other crops." This confirms both A and R are true, and R correctly explains why pulses are grown in rotation — making option A the right choice.

Previous-year CBSE Grade 10 board exam questions, organised by subject and chapter, each with a model answer — free to read and print.