Nutrient Cycling MCQs (Quiz 7)

1. Which nutrient is most susceptible to leaching from agricultural soils?

2. Denitrification returns nitrogen to the atmosphere in which form?

3. Nitrogen-fixing bacteria convert atmospheric nitrogen gas (N₂) into _______________, is then readily used by plants

4. In ecology, a nutrient budget is best defined as ________________________________________

5. Which of the following is NOT a weathering agent?

6. Which of the following essential plant nutrients is primarily derived from the weathering of apatite rock?

7. Carbonation is particularly important in the weathering of ________________

8. In nutrient cycling, weathering is important because it _______________

9. Under aerobic conditions, plants absorb nitrogen mainly in the form of __________________

10. Where is the primary reservoir of phosphorus in the sedimentary phosphorus cycle?