1. Physical Environment 2. Atmosphere (a) Water bodies (b) relationship between a living organism and its surroundings (C) Disastrous effects

1. Physical Environment 2. Atmosphere (a) Water bodies (b) relationship between a living organism and its surroundings (C) Disastrous effects (d) Land, water and air (e) Layer of air 3. Hydrosphere 4. Ecology 5. Environmental degradation​

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