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Q: Soil is weathered chemically due to_________
  • A. leaching
  • B. plants and animals
  • C. wind
  • D. splitting action of ice
Correct Answer: Option A - • Decomposition of rocks is caused mainly by oxidation, hydration, leaching by organic acids and water. • Clay and silt are formed by chemical weathering. • Carbon dioxide, oxygen and water are the most important agent of chemical weathering.
A. • Decomposition of rocks is caused mainly by oxidation, hydration, leaching by organic acids and water. • Clay and silt are formed by chemical weathering. • Carbon dioxide, oxygen and water are the most important agent of chemical weathering.

Explanations:

• Decomposition of rocks is caused mainly by oxidation, hydration, leaching by organic acids and water. • Clay and silt are formed by chemical weathering. • Carbon dioxide, oxygen and water are the most important agent of chemical weathering.