Our Environment, Class- 5, Subject- Social studies, Solved exercises.

A. Tick the correct answer

1. What is the natural world in which people, animals and plants live called?
✅ Environment


2. Clean surrounding is necessary for us to stay —
✅ Healthy


3. What are the materials that decompose naturally called?
✅ Biodegradable


4. What is the process of reusing a product or producing new products from waste materials known as?
✅ Recycling




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B. Write (T) for true and (F) for false sentences

1. Compost pits cannot be made at home. — ❌ False


2. We should use cloth bags. — ✅ True


3. Open dumping is an eco-friendly way of waste disposal. — ❌ False


4. Clean surroundings are necessary for us to stay healthy. — ✅ True




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C. Answer the following questions

1. What do you understand by the term ‘environment’?
Answer:- The environment is everything that surrounds us, including air, water, land, plants, animals, and humans.


2. What is the difference between biodegradable and non-biodegradable waste?
Answer:- Biodegradable waste decomposes naturally (like food waste and paper), while non-biodegradable waste does not decompose easily (like plastic and glass).


3. Explain open dumping.
Answer:- Open dumping is the careless throwing of waste in open areas, which causes pollution and harms the environment.


4. Write a note on compost pits.
Answer:-  Compost pits are pits where biodegradable waste is collected and allowed to decompose naturally to form compost, which can be used as manure.


5. What are the three R’s? What are their uses?
Answer:- The three R’s are Reduce, Reuse, and Recycle.
They help in minimizing waste, conserving resources, and protecting the environment.




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D. Give reasons

1. We should not throw waste in a water body.
→ Because it pollutes the water, harms aquatic life, and makes water unsafe for use.


2. Plastics, bottles and cans are a major threat to the environment.
→ Because they are non-biodegradable and cause land and water pollution.




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Observe and Answer

1. What does the picture represent?
Answer:-  The picture represents the three R’s — Reduce, Reuse, and Recycle.


2. Why is it important?
Answer:- It helps to reduce waste, save resources, and keep the environment clean and healthy.

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