PDF chapter test TRY NOW
Theory
Practice Questions
1. |
Constituents of air
Difficulty: easy |
2
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2. |
Uses of air
Difficulty: easy |
2
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3. |
Inhalation and exhalation
Difficulty: easy |
3
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4. |
Equation of photosynthesis and respiration
Difficulty: easy |
2
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5. |
Air composition
Difficulty: medium |
4
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6. |
Dust particles
Difficulty: medium |
4
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7. |
Gases in the air
Difficulty: easy |
2
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8. |
Gases used by plants and animals
Difficulty: medium |
4
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9. |
Other constituents of air
Difficulty: medium |
4
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10. |
Respiratory organs
Difficulty: medium |
4
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11. |
Respiration
Difficulty: hard |
6
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12. |
Contents of air
Difficulty: hard |
6
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Tests
1. |
Training test 1
Difficulty: medium |
8
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2. |
Training test 2
Difficulty: medium |
9
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