Nature's Treasures — Quiz

Q1. When we hold our breath for a long time, our body starts feeling uncomfortable because

• A. The body does not get enough oxygen
• B. The body gets too much nitrogen
• C. The body loses water
• D. The body becomes too hot

Q2. Ravi holds a firki (paper pinwheel) in his hand and runs. The firki rotates because

• A. The Sun's heat makes it rotate
• B. Wind pushes against its blades
• C. Gravity pulls it down
• D. The paper becomes wet

Q3. Muppandal Wind Farm is located in which Indian state?

• A. Rajasthan
• B. Maharashtra
• C. Tamil Nadu
• D. Gujarat

Q4. Most of the water on Earth is found in oceans and seas, but this water is not fit for domestic, agricultural and industrial use because it is

• A. Too cold
• B. Saline (salty)
• C. Hot
• D. Sweet

Q5. The stepwell named Toorji ka Jhalra in Jodhpur, locally known as Bawadi, is an example of

• A. A modern dam
• B. A traditional rainwater harvesting structure
• C. A river barrage
• D. A canal

Q6. World Water Day is observed every year on

• A. 22nd March
• B. 5th June
• C. 16th September
• D. 2nd October

Q7. Bhoomi and Surya see a cow grazing grass. Surya argues that the cow ultimately gets its energy from the Sun. The best reason supporting Surya is

• A. The cow stands in the Sun while grazing
• B. Cows can only digest food during the day
• C. Sunlight directly enters the cow's body through its skin
• D. Grass leaves need sunlight to grow, and the cow eats the grass

Q8. Ajji exposes raw mangoes and chillies to the hot Sun for several days to dry them. Which property of the Sun is being used here?

• A. Its gravitational pull
• B. Its heat
• C. Its rotation
• D. Its magnetic field

Q9. The famous Chipko movement, in which local women hugged trees to prevent them from being cut, started in the early 1970s in which region?

• A. Uttarakhand (previously part of Uttar Pradesh)
• B. Kerala
• C. Tamil Nadu
• D. Punjab

Q10. Why does the chapter say that we must use forests responsibly and preserve them?

• A. Because forests can be regrown in a single rainy season
• B. Because a new forest can be created in a week
• C. Because it takes many years to grow a new forest or restore lost forests
• D. Because forests harm wild animals

Q11. Bhoomi finds a few earthworms in the garden soil. What is their natural role mentioned in the chapter?

• A. They make the soil acidic
• B. They eat all the plant roots
• C. They turn and loosen the soil
• D. They convert soil into rocks

Q12. Important metals like aluminium, gold, copper and iron are extracted from

• A. Water
• B. Minerals
• C. Petroleum
• D. Plastic

Q13. Compressed Natural Gas (CNG) is used as a fuel for vehicles because, compared to petrol or diesel, it is

• A. Much more expensive
• B. A liquid fuel only used for cooking
• C. A cleaner fuel that causes less pollution
• D. A renewable resource that never finishes

Q14. A school in Rampur has electric bulbs, furniture, solar panels and bicycles. These items, made by human beings using natural resources, are best classified as

• A. Natural resources
• B. Renewable resources
• C. Human-made resources
• D. Non-renewable resources

Q15. A fuel that is commonly used in two-wheelers like scooters or bikes is

• A. Kerosene
• B. Petrol
• C. LPG
• D. Coal