2.1 The atmosphere

2.2 The hydrosphere

2.3 Mineral resources

2.4 Biogeochemical cycles

2.5 Soils

3 Energy resources

1.1 Conditions for life on Earth

1.2 Conservation of biodiversity

1.3 Life processes in the biosphere

5.1 Agriculture

5.2 Aquatic food resources

5.3 Forest resources