Class 8 Science Chapter 12: How Nature Works in Harmony — practice questions with answers
Free practice for Class 8 Science, Chapter 12: How Nature Works in Harmony. Try the solved questions below, then take a free test with instant marking and explanations.
49 questions18 easy, 26 medium, 5 hardNCERT · CBSE · State boards
Sample questions with solutions
Q1. Why do elephants sometimes enter farms and villages?
- Scarce vegetation and dried waterholes in their habitat make them search for food
- They like people
- Farms are cooler
- They are lost every day
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Answer: A. Scarce vegetation and dried waterholes in their habitat make them search for food
Why: Cutting trees for roads and buildings makes it worse. [p.191]
Why: Cutting trees for roads and buildings makes it worse. [p.191]
Q2. The living components of a habitat are called ______ components.
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Answer: biotic
Why: Non-living ones are abiotic. [p.192]
Why: Non-living ones are abiotic. [p.192]
Q3. Which are abiotic components of a pond? (Tick all that apply)
- Water
- Sunlight
- Temperature
- Fish
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Answer: A. Water; B. Sunlight; C. Temperature
Why: Fish are biotic. [p.192–193]
Why: Fish are biotic. [p.192–193]
Q4. A group of organisms of the same type living in a habitat at a given time is a ______.
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Answer: population
Why: Different populations together form a community. [p.194]
Why: Different populations together form a community. [p.194]
Q5. What is a community in ecology?
- Different populations sharing the same habitat
- One kind of organism only
- Only plants
- Only non-living things
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Answer: A. Different populations sharing the same habitat
Why: Communities interact with abiotic components. [p.194]
Why: Communities interact with abiotic components. [p.194]
Q6. Biotic and abiotic components of an area interacting with each other form an ______.
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Answer: ecosystem
Why: Ecosystems are aquatic or terrestrial. [p.197]
Why: Ecosystems are aquatic or terrestrial. [p.197]
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Frequently asked questions
How many practice questions are there for Class 8 Science Chapter 12: How Nature Works in Harmony?
49 questions (18 easy, 26 medium, 5 hard). A few are solved on this page; the free test shows the answer and explanation for every question after you submit.
Is this chapter from the NCERT book?
Yes — it follows the NCERT Class 8 Science syllabus, used by CBSE and many state boards.