Soil Pollution Quiz

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Questions and Answers

What is the primary factor responsible for the formation of soil from the parent material?

  • Temperature changes and wind erosion
  • Abrasion and moving water
  • Mechanical and chemical weathering activities (correct)
  • Glacial movement and lichen growth

Which horizon of the soil contains freshly-fallen & partially decomposed leaves, twigs, and animal waste?

  • C-horizon
  • B-horizon
  • O-horizon (correct)
  • A-horizon

What is the primary characteristic of the A-horizon of the soil?

  • Does not contain any organic materials
  • Consists of broken-up bedrock
  • Darker & looser than the deeper layers (correct)
  • Contains a large amount of bacteria and fungi

Which horizon of the soil consists of broken-up bedrock and does not contain any organic materials?

<p>C-horizon (B)</p> Signup and view all the answers

What is the primary cause of soil pollution?

<p>Presence of chemicals or other alteration in the natural soil environment (B)</p> Signup and view all the answers

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Study Notes

Soil Formation and Composition

  • The primary factor responsible for the formation of soil from the parent material is weathering and erosion.

Soil Horizons

  • The O-horizon of the soil contains freshly-fallen and partially decomposed leaves, twigs, and animal waste.
  • The primary characteristic of the A-horizon of the soil is that it is rich in organic matter and nutrients.
  • The C-horizon of the soil consists of broken-up bedrock and does not contain any organic materials.

Soil Pollution

  • The primary cause of soil pollution is the presence of toxic substances, such as pesticides, heavy metals, and industrial waste, which can alter the soil's chemical composition and affect its fertility.

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