Conservation of Plants and Animals — Question 20
Back to all questionsQuestion 5(f)
What do you understand by the term migration?
Migration is the phenomenon of movement of a species from its own habitat to some other habitat for a particular time period every year for a specific purpose like breeding.
Key Concepts Covered
This question tests your understanding of the following concepts from the chapter Conservation of Plants and Animals: Question, Understand, Term, Migration, Conservation of Plants and Animals, Science. These are fundamental topics in Science that students are expected to master as part of the CBSE Class 8 curriculum.
A thorough understanding of these concepts will help you answer similar questions confidently in your CBSE examinations. These topics are frequently tested in both objective and subjective sections of Science papers. We recommend revising the relevant section of your textbook alongside practising these solved examples to build a strong foundation.
How to Approach This Question
Read the question carefully and identify what is being asked. Break down complex questions into smaller parts. Use the terminology and concepts discussed in this chapter. Structure your answer logically — begin with a definition or key statement, then provide supporting details. Review your answer to ensure it addresses all parts of the question completely.
Key Points to Remember
- Read the question carefully and identify all parts before answering.
- Use the terminology specific to this subject and chapter.
- Review the textbook content for this chapter before attempting questions.
- Practice writing concise, well-structured answers within time limits.
Practice more questions from Conservation of Plants and Animals — Science, Class 8 CBSE
Chapter Overview: Conservation of Plants and Animals
This environmental chapter covers deforestation and its consequences, the importance of biodiversity, types of protected areas (biosphere reserves, national parks, wildlife sanctuaries), and concepts like endemic species, Red Data Book, and migration. Reforestation and paper recycling link conservation to everyday action.
Board Exam Weightage: 5-7 marks | Difficulty: Moderate
Key Formulas & Concepts
| Concept | Details |
|---|---|
| Biosphere Reserve | Large protected area: conservation + research + development (e.g., Pachmarhi, Sundarbans) |
| National Park | Strictly protected area: no human activity allowed (e.g., Jim Corbett, Kaziranga) |
| Wildlife Sanctuary | Animals protected, limited human activity like grazing allowed (e.g., Bharatpur, Periyar) |
| Red Data Book | Record of endangered species maintained by IUCN |
Must-Know Concepts
- Deforestation leads to soil erosion, desertification, floods, global warming, biodiversity loss
- India is one of 12 mega-biodiversity countries
- Endemic species are found only in a specific area; endangered species are at risk of extinction
- Reforestation = replanting where forest existed; Afforestation = planting where forest never was
- Siberian crane migrates from Siberia to Bharatpur (India) in winter
- Recycling 1 tonne of paper saves about 17 trees
Protected Areas Comparison
| Feature | Biosphere Reserve | National Park | Wildlife Sanctuary |
|---|---|---|---|
| Size | Largest | Medium | Smallest |
| Purpose | Conservation + Research + Development | Strict wildlife protection | Animal protection in natural habitat |
| Human Activity | Limited (buffer zone) | Not allowed | Limited (grazing allowed) |
| Example | Pachmarhi (MP), Nilgiri | Jim Corbett (UK), Gir (GJ) | Bharatpur (RJ), Periyar (KL) |
Common Mistakes to Avoid
- Confusing biosphere reserve, national park, and wildlife sanctuary
- Mixing up endemic (exclusive to area) and endangered (at risk of extinction)
- Confusing reforestation (re-planting) and afforestation (new planting)
- Thinking Red Data Book lists ALL species (only endangered ones)
Scoring Tips
- Make a comparison table of protected areas with examples for each
- Use memory aids: Endemic = Exclusive location; Endangered = at risk of Ending
- Memorise 5 national parks and 5 wildlife sanctuaries with states
- Practice drawing the cause-consequence chain of deforestation
Frequently Asked Questions
Q: How many marks does this chapter carry in the exam?
A: Approximately 5-7 marks in the annual exam.
Q: What question types are commonly asked?
A: MCQs (1 mark), Very Short Answer (2 marks), Short Answer (3 marks), and Long Answer / Diagram (5 marks).
Q: Is this chapter important for competitive exams?
A: Yes, concepts from this chapter appear in NTSE, Olympiad, and other science competitions.