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PU M 2026 Ecosystem Free Quiz 3

PU M Quiz

10:00

Answered: 0 / 5

Remaining: 5

Navigator 5 Q

General

General 5 MCQs

21. What cycle involves evaporation and precipitation?

A. Water cycle B. Carbon cycle C. Nitrogen cycle D. Phosphorus cycle

22. What are biogeochemical cycles?

A. Biogeochemical cycles B. Water cycle C. Carbon cycle D. Nitrogen cycle

23. Which biogeochemical cycle is the slowest?

A. Carbon cycle B. Phosphorus cycle C. Nitrogen cycle D. Water cycle

24. What is the conversion of N₂ to NH₃ called?

A. Nitrification B. Denitrification C. Nitrogen fixation D. Ammonification

25. What is the conversion of NH₃ to NO₂⁻ and NO₃⁻ called?

A. Nitrogen fixation B. Denitrification C. Ammonification D. Nitrification

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