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College-level science worksheet on biogeochemical cycles showing questions about nitrogen, carbon, and hydrologic cycles.
Worksheet

The Cycle of Elements Within the Biosphere

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This college-level environmental science worksheet covers biogeochemical cycles, including the nitrogen, carbon, and hydrologic cycles. Students answer multiple-choice and short-answer questions on nutrient cycling, carbon fixation, nitrogen fixation, fossil fuels, and human impacts like slash-and-burn agriculture. Designed for introductory earth science or environmental biology courses.

Subject:
Science
Topic:
Earth Science
Grade Level:
College
Updated September 2025

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