Paper 1 · People, Development and Environment
Assertion (A): Water logging and soil salinity are problems that arise when irrigation is done without proper drainage of water. Reason (R): Improper drainage leads to water logging; salt gets deposited as a thin crust on the soil surface and collects at the roots of plants, and this salinity affects plant growth. Choose the correct answer.
ABoth (A) and (R) are true and (R) is the correct explanation of (A) ✓ Correct
BBoth (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
Correct answer: (A) Both (A) and (R) are true and (R) is the correct explanation of (A) — Both (A) and (R) are true, and (R) correctly explains (A), so that is the answer.
Explanation
★Both (A) and (R) are true, and (R) correctly explains (A), so that is the answer.
★The assertion says water logging and salinity come from irrigation without drainage.
★The reason explains how poor drainage traps water and deposits salt at the roots.
★This build-up of salt at the roots is exactly what causes the salinity problem.
★So the reason explains why these problems arise.
★So both are true and (R) is the correct explanation of (A).
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