Learn · ⁨学习⁩

国际文凭组织 · IB Diploma · 环境系统与社会 · SL

Choose a lesson to begin. · ⁨选择一门课程开始。⁩

Course units and learning goals · ⁨课程单元与学习目标⁩ →These lessons teach selected course objectives. Check the remaining coverage gaps; the material is not a complete preparation programme. · ⁨这些课程教授选定的教学目标。请检查剩余的覆盖缺口；本材料并非完整的备考方案。⁩

1 1 · Foundation 0 / 1

1 Environmental systems, feedback and perspectives

2 2 · Ecology 0 / 2

1 Environmental systems, feedback and perspectives 2 Sampling populations without choosing the answer

3 3 · Biodiversity and conservation 0 / 1

1 Biodiversity, conservation and sampling evidence

4 4 · Water 0 / 1

1 Water, pollution and management trade-offs

5 5 · Land 0 / 1

1 Land, food and resource decisions

6 6 · Atmosphere and climate change 0 / 1

1 Climate evidence, energy budgets and policy