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  • Subjects
  • Biology CBSE Live product
  • Class 8 (2025-26)
  • Our Home: Earth, a Unique Life-Sustaining Planet

Human impact and need for conservation

Theory

1. Human impact and need for conservation

Practice Questions

1. Humans and environment

Difficulty: easy

1
2. Delicate balance of life and interdependence

Difficulty: easy

2
3. Triple Planetary Crisis

Difficulty: easy

3
4. Climate change: Causes and consequences

Difficulty: medium

3
5. Biodiversity loss and food chain collapse

Difficulty: medium

2
6. Pollution – Air, water and soil

Difficulty: medium

5
7. Human activities disturbing environmental balance

Difficulty: hard

1
8. Global environmental agreements

Difficulty: hard

5
9. Local and individual actions

Difficulty: medium

2
10. Sustainable living and measures

Difficulty: hard

3

Teacher manual

1. Methodical recommendation
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