Topics: Nutrient Cycling Quiz
Angie constructs models of the carbon cycle, nitrogen cycle, and water cycle. What type of ecological models are these?
A. food web
B. food chain
C. biogeochemical cycles
D. geological system
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What is the geosphere?
A. all the air and gases on the planet
B. all the frozen water on the Earth
C. the non-living soil, rocks, and minerals of the Earth
D. the rivers, lakes, and oceans of the Earth