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Theory

Exercises

1. Properties of water cycle

Difficulty: easy

2
2. Nitrogen cycle and its nature

Difficulty: easy

2
3. Nitrogen and water cycle

Difficulty: easy

2
4. Properties of biogeochemical cycles

Difficulty: easy

2
5. Properties of biogeochemical

Difficulty: medium

5
6. Properties of nitrogen cycle

Difficulty: medium

4
7. Characteristics of water cycle

Difficulty: medium

4
8. Characteristics of Carbon cycle

Difficulty: medium

4
9. Characteristics of oxygen cycle and ozone layer

Difficulty: medium

4
10. Greenhouse effect and ozone layer

Difficulty: medium

4
11. Carbon cycle, Oxygen cycle, Ozone layer and greenhouse effect.

Difficulty: hard

6
12. Biogeochemical cycles

Difficulty: hard

6

Tests

1. Training Test

Difficulty: medium

4
2. Training Test-II

Difficulty: medium

5

Teacher manual