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AP环境科学- 4 生态系统和生态学 Ecosystem Ecology

AP环境科学-31 水污染 Water Pollution

AP环境科学- 8 人口动力学 Human Population Dynamics

AP环境科学-16 土壤学 Soil and Soil Dynamics

AP环境科学-10 人类人口增长对环境的影响 Human Population Impacts

AP环境科学- 12 地质学 Geology

AP环境科学- 14 地球水资源 Water Resources

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