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Natural Resources โ€” Soil and Biogeochemical Cycles

Science ยท Grade 9 ยท Week 24 ยท 25 questions

Natural resources โ€” water, air, minerals, forests โ€” are the foundation of life and economy. Understanding how to use and conserve them responsibly is crucial for future generations.

What you'll practise

  • Identify renewable and non-renewable resources
  • Explain why conservation matters
  • Describe sustainable resource management
  • Understand the impact of overexploitation
All 25 questions in this Natural Resources โ€” Soil and Biogeochemical Cycles quiz

Grade 9 Science โ€” Natural Resources โ€” Soil and Biogeochemical Cycles: 25 practice questions with instant scoring and explanations.

  1. Soil is formed by:
  2. The process of soil formation takes:
  3. Soil degradation is caused by:
  4. Soil erosion is primarily caused by:
  5. Soil conservation methods include:
  6. The nitrogen cycle involves:
  7. Nitrogen fixation is the process where:
  8. Nitrogen-fixing bacteria are found in:
  9. Nitrification is the process where:
  10. Denitrification is the process where:
  11. The carbon cycle includes:
  12. Photosynthesis removes carbon dioxide from the atmosphere and:
  13. Respiration returns carbon dioxide to the atmosphere from:
  14. Decomposition is important in biogeochemical cycles because it:
  15. The oxygen cycle involves:
  16. Oxygen is produced in the oxygen cycle by:
  17. Oxygen is consumed in the oxygen cycle by:
  18. The phosphorus cycle differs from nitrogen and carbon cycles because:
  19. Phosphorus is essential for:
  20. Biogeochemical cycles are important because they:
  21. Eutrophication in water bodies is caused by excess:
  22. Soil pH affects nutrient availability because:
  23. Humus in soil is formed from:
  24. The impact of human activities on biogeochemical cycles includes:
  25. Waste decomposition and nutrient cycling are handled by:
Question 1 of 250 correct so far

Soil is formed by: