Biogeochemical Cycles
Biology ⇒ Ecology and Environment
Biogeochemical Cycles starts at 8 and continues till grade 12.
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See sample questions for grade 9
Describe one way human activities can disrupt the nitrogen cycle.
Describe the process of ammonification in the nitrogen cycle.
Describe the role of bacteria in the nitrogen cycle.
Describe the role of decomposers in the biogeochemical cycles.
Explain how combustion affects the carbon cycle.
Explain how deforestation can affect the carbon cycle.
Explain the difference between evaporation and transpiration.
Explain why biogeochemical cycles are important for ecosystems.
Explain why the phosphorus cycle is considered a sedimentary cycle.
Name the process by which bacteria convert atmospheric nitrogen into ammonia.
What is the main reservoir of water in the water cycle?
What is the role of lightning in the nitrogen cycle?
Which process in the nitrogen cycle converts ammonia into nitrites and nitrates?
Which process in the water cycle is responsible for the formation of clouds?
Which process returns carbon to the atmosphere during the decay of dead organisms?
