Chapter 25 of 26
Revision Notes
Environmental Degradation And Disaster Management — Revision Notes
NIOS · Class 10 · Social Studies
Environmental Degradation And Disaster Management revision notes for NIOS Class 10 Social Studies: 4 topics in quick points.
87 questions35 flashcards5 concepts
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Key Topics to Revise
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1. Meaning, Components, and Classification of Environment
- Environment means the sum total of all the conditions, circumstances, and living and non-living things around an organism that affect its life.
- Environment has two components: biotic and abiotic.
- Biotic component includes living things such as human beings, plants, animals, microbes, bacteria, food, and interactions among organisms.
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2. Importance of Environment and Environmental Degradation
- Environment is the life support system for human beings and all other organisms.
- It provides food, shelter, water, air, soil, energy, medicines, fibres, and raw materials.
- The environment helps maintain atmospheric composition and protects life from harmful solar radiation.
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3. Causes of Environmental Degradation
- The causes of environmental degradation are grouped into social factors and economic factors.
- Social factors include growing population, poverty, urbanisation, and changing lifestyle.
- Economic factors include agricultural development, industrialisation, and economic development.
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4. Implications of Environmental Degradation and Conservation Measures
- Environmental degradation has serious effects on development, health, and survival.
- About 50 percent of geographical area of India suffers from varying degrees of degradation.
- Over 5.3 billion tonnes of top soil is lost every year due to soil erosion.
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Full NotesKey Concepts
Environment is the sum totalThe biotic component includes living thingsThe abiotic component includes nonNatural environment includes all livingHuman
Frequently Asked Questions
What are the important topics in Environmental Degradation And Disaster Management for NIOS Class 10 Social Studies?
Key topics in Environmental Degradation And Disaster Management include Meaning, Components, and Classification of Environment, Importance of Environment and Environmental Degradation, Causes of Environmental Degradation, Implications of Environmental Degradation and Conservation Measures. Study these first, then practise questions on each for the NIOS Class 10 board exam.
How should I revise Environmental Degradation And Disaster Management for the NIOS Class 10 board exam?
Learn the core ideas first, then work through the 87 practice questions on Environmental Degradation And Disaster Management. Revise definitions regularly and use flashcards for quick recall before the exam.
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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