Biogeochemical Cycles
Biology ⇒ Ecology and Environment
Biogeochemical Cycles starts at 8 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Biogeochemical Cycles.
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See sample questions for grade 12
A lake receives runoff from nearby farms containing high levels of nitrogen and phosphorus. What is the likely ecological consequence?
Describe how deforestation can affect the carbon cycle.
Describe the impact of excessive fertilizer use on the nitrogen and phosphorus cycles.
Describe the process of eutrophication and its relation to the phosphorus cycle.
Describe the process of mineralization in the context of biogeochemical cycles.
Describe the role of decomposers in the carbon cycle.
Explain how fossil fuel combustion affects the carbon cycle.
Explain the difference between a reservoir and a flux in a biogeochemical cycle.
Explain the difference between assimilation and ammonification in the nitrogen cycle.
Explain the process of denitrification and its ecological significance.
Explain the role of lightning in the nitrogen cycle.
Explain why the nitrogen cycle is important for living organisms.
Explain why the water cycle is essential for life on Earth.
Name two human activities that can disrupt the carbon cycle.
