Environmental problems associated with soils are

1.Nutrient leaching

2.Metal contamination

3.Salinity and alkalinity

4.Ozone depletion

5.Fine aerosols in ambient air

A1, 2, 3 & 5 only

B2, 3 & 5 only

C1, 2, 3 & 4 only

D1, 2 & 3 only ✓ Correct

Correct answer: (D) 1, 2 & 3 only

Explanation

Nutrient leaching, metal contamination and salinity with alkalinity are all soil related problems.

Statement 1 nutrient leaching washes plant nutrients down out of the root zone in the soil.

Statement 2 metal contamination loads the soil with harmful heavy metals.

Statement 3 salinity and alkalinity degrade soil by building up salts and raising its alkalinity.

Ozone depletion is an atmospheric issue and fine aerosols in ambient air are air problems, not soil ones.

Salt affected and metal laden soils lose fertility and can harm crop growth.

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