Objective

Question-1. unique site of biodiversity—

Ans- Forest

Question-2. When is Environment Day celebrated?

Ans- on June 5

Question-3. What methods can be used to dispose of waste from the environment?

(a) less use (b) recycle (c) reuse (d) all of these

Ans- (d) all of these

Question-4. In which state was the Chipko movement started to stop felling of trees?

Ans- In Rajasthan

Question-5. In which state Kulha, a local system of canal irrigation, developed?

Ans- in Himachal Pradesh

Question-6. On which river Tehri Dam was built?

Ans- on the river Ganges

Question-7. By what name is the ancient pond in Tamil Nadu known?

Ans- Erie

Question-8. Sardar Sarovar Dam was built on which river?

Ans- on the river Narmada

Question-9. Which of these is not a natural resource?

(a) Air (b) Soil (c) Water (d) Pond

Ans- (d) Pond

Question-10. Which of these is a natural resource?

(a) Forest (b) Soil (c) Water (d) All of these

Ans- (d) all of these

Question-11. What is coliform?

Ans- bacteria

Question-12. The Indira Gandhi Canal brought greenery to a large area of which state?

Ans- Rajasthan

Question-13. Mention one major measure of forest conservation.

Ans- transplant

Question-14. What are the major constituents of bio gas?

Ans- methane

Question-15. What type of water does the dengue-causing mosquito (the female Anopheles) live in?

Ans- in clear water

Question-16. Give an example of a non-conventional energy source.

Ans- solar energy

Question-17. Why should we conserve forests and wildlife?

Ans- to maintain ecological balance

Question-18. Which of the following is not an example of a biomass energy source?

(a) wood (b) dung gas (c) nuclear energy (d) coal

Ans- (c) nuclear energy

Question-19. It is necessary to obtain nuclear energy.

Ans- uranium

Question-20. Which of the following is not an example of a mass energy source?

(a) Petroleum (b) Biogas (c) Nuclear energy (d) Coal

Ans- (c) Nuclear energy

Question-21. Forest protection is a measure.

(a) by new plantation (b) stopping deforestation (c) stopping population growth (d) all of these

Ans- (d) all of them

Question-22. Which of the following form a food chain?

(a) Grass, Wheat and Mango (b) Grass, Goat and Man (c) Goat, Cow and Elephant (d) Grass, Fish and Goat

Ans- (b) Grass, Goat and Human

Question-23. What is a vegetarian diet formed by?

(a) First trophic level (b) Second trophic level (c) Third trophic level (d) Fourth trophic level

Ans- (b) second trophic level

Question-24. Which of the following is called eco-friendly?

(a) Carrying a cloth bag for goods while going to the market.

(b) Switching off the bulb and fans when the work is over.

(c) Going to school on foot instead of on a scooter.

(d) all of them

Ans- (d) all of them

Question-25. Which of the following means water?

(a) Petro (b) Turbo (c) Nitro (d) Hydro

Ans- (d) Hydro

Question-26. Which of the following is not environment friendly?

(a) walking (b) bicycling (c) motorcycle (d) none of these

Ans- (c) riding a motorcycle

Question-27. Surangam is the water harvesting system of which state?

Ans- केरल