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Q: Which of the following is NOT a physical weathering agent?
  • A. Climate change
  • B. Freeze - thaw cycle
  • C. Heavy rainfall
  • D. Acidic rain
Correct Answer: Option D - Weathering of the rock can occur either physical or chemically. Physical agents – • Splitting action of ice • Gravitational force • Plants and animals • Climate change • Freeze thaw cycle • Heavy rainfall etc. • Impact and grinding of water, air, and ice. Chemical agents – • Oxidation • Reduction • Carbonation • Hydration • Acid rain, etc. • Leaching action by H₂O and organic acid
D. Weathering of the rock can occur either physical or chemically. Physical agents – • Splitting action of ice • Gravitational force • Plants and animals • Climate change • Freeze thaw cycle • Heavy rainfall etc. • Impact and grinding of water, air, and ice. Chemical agents – • Oxidation • Reduction • Carbonation • Hydration • Acid rain, etc. • Leaching action by H₂O and organic acid

Explanations:

Weathering of the rock can occur either physical or chemically. Physical agents – • Splitting action of ice • Gravitational force • Plants and animals • Climate change • Freeze thaw cycle • Heavy rainfall etc. • Impact and grinding of water, air, and ice. Chemical agents – • Oxidation • Reduction • Carbonation • Hydration • Acid rain, etc. • Leaching action by H₂O and organic acid