Social Science · Class 7
Geography: Environment
Learn Geography: Environment with notes, examples, and practice questions.
4 sections15–25 min read6 MCQs · 2 examples
Chapter Overview
Environment includes natural surroundings and human interaction. Topics cover ecosystem, biosphere reserves, pollution, and sustainable development for Class 7 geography.
Ecosystem
- Biotic and abiotic components linked
- Producers, consumers, decomposers
- Food chain and food web
- Human activities alter ecosystems
Natural Vegetation and Wildlife
- Tropical evergreen, deciduous, thorn, montane
- Tiger, elephant, one-horned rhino — conservation
- Biosphere reserves: Nilgiri, Sundarbans, Nanda Devi
Environment Problems
- Deforestation, soil erosion, air and water pollution
- Climate change — greenhouse gases
- Conservation: wildlife protection acts, afforestation
Solved Examples
Step-by-step solutions — read each step before checking the final answer.
Food chain
Construct simple food chain: grass, deer, tiger.
- 1Grass → deer → tiger
- 2Energy flows from producer to carnivore
Answer
Grass → Deer → Tiger
Biosphere reserve
Why are biosphere reserves set up?
- 1Conserve biodiversity and ecosystems
- 2Allow research and sustainable use
Answer
Protect flora, fauna, and traditional communities
Key Points to Remember
- ✓ Environment supports all life
- ✓ Human actions cause degradation
- ✓ Protected areas conserve biodiversity
- ✓ Sustainable use ensures future resources
Exam Tips
- • Define ecosystem with example
- • Name two biosphere reserves
- • Effects of deforestation
Practice MCQs — Geography: Environment
Test your understanding with topic-wise multiple choice questions. Explanations appear after each answer.
Question 1 of 6Score: 0/0
Producers in ecosystem are mostly: