Biogeochemical Cycles in Ecosystems

Biogeochemical cycles are the naturally occurring processes that recycle nutrients in the environment. The main cycles are the water, carbon, nitrogen, and oxygen cycles. These cycles are the ones that living organisms depend on for the continuous supply of the necessary elements. The process of learning through biogeochemical cycles Quiz for Grade 9 is basically testing your understanding regarding how nutrients are circulating in the global biosphere, atmosphere, hydrosphere, and lithosphere. Moreover, it teaches us the major roles of plants, animals, and microorganisms in sustaining the cycles, and what human activities do to them. You have 10 situations to test your knowledge about cycles of biogeochemical elements.