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Introduction to Environmental Science
Task 7：Three Levels of Biodiversity
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Task List
Task 1：Welcome to Ecology
Task 2：Significance of Environmental Science
Task 3：Water Pollution Issues
Task 4：Cycling of Matter
Task 5：Fundamental Principles of Matter and Energy
Task 6：Welcome to Biodiversity
Task 7：Three Levels of Biodiversity
Task 8：System Components and Interactions
Task 9：Feedback Mechanisms in Environmental Systems
Task 10：Course Conclusion
Task 11：Carbon Cycle Mechanisms
Task 12：Nitrogen Cycle Overview
Task 13：Human Alterations of Global Cycles
Task 14：Impact Assessments and Mitigation Strategies
Task 15：Course Summary
Task 16：Understanding Climate Change
Task 17：Greenhouse Gases and Their Effects
