Chapter 17 Forests: Our Lifeline

Question 1. Which of the following serve as green lungs?

(a) Green pigment of the plants

(b) Forests

(c) Kitchen gardens

(d) Green house gases

Question 2. Boojho visited a forest near his town with his classmates and his teacher. As they were entering the forest, their class teacher told them not to make noise in the forest as noise could disturb the

(a) birds

(b) animals

(c) both birds and animals

(d) plants

Question 3. Which among the following forest animals is the smallest?

(a) Fox

(b) Boar

(c) Bison

(d) Porcupine

Question 4. Which of the following has the strongest stem?

(a) A tree

(b) A creeper

(c) A climber

(d) A bush

Question 5. Which of the following is not prepared from the wood obtained from forest?

(a) Paper

(b) Thermocol

(c) Matchsticks

(d) Plywood

Question 6. Which of the following is not the name of a tree?

(a) Teak

(b) Sal

(c) Porcupine

(d) Kachnar

Question 7. Pick the option which gives the names of a tree and an animal, respectively from the following.

(a) semal, hornbill

(b) sal, khair

(c) chinkara, blue bull

(d) neem, palash

Question 8. Which of the products is not obtained from a forest?

(a) Honey

(b) Catechu

(c) Gum

(d) Ginger

Question 9. The branchy part of a tree above the stem is known as

(a) crown

(b) canopy

(c) sapling

(d) humus

Question 10. Forests are not responsible for

(a) providing medicinal plants.

(b) maintaining the flow of water into the streams.

(c) creating flood conditions.

(d) absorbing rainwater and maintaining water table.

Question 11. Paheli while moving in a forest observed that there was no noise pollution, though lots of heavy vehicles were passing from the nearby highway. Explain why?

Question 12. State whether the following statements are true or false. If false, give the correct statement.

(a) Forests influence climate, water cycle and air quality.

(b) In a forest, trees form the uppermost layer, followed by herbs. The shrubs form the lowest layer of vegetation.

(c) The forest keeps on growing and changing and can regenerate.

(d) Forests protect the soil from erosion.

Question 13. Paheli wrote a food chain in the following way:

frog $\to$ eagle $\to$ insects $\to$ grass $\to$ snake

The chain is not in the correct order. Help her to write the food chain correctly.

Question 14. Give names of any four birds which you expect to see in a forest.

Question 15. Two friends shared their experiences of their vacation trip to two different forests. Do you think they would have seen the same type of plants and animals during their respective trips? Give reason.

Question 16. “A bunch of seedlings were seen sprouting on a heap of animal dropping in a forest.” How do you think is the seedling benefited from the animal dung?

Question 17. Match Column I with Column II

Question 18. Deforestation may lead to floods. Why?

Question 19. Name any four useful products other than wood, which we get from forests.

Question 20. Figure 17.1 shows a part of a forest.

Write any three activities going on in the forest on the basis of this figure.

Question 21. People say that nothing goes waste in a forest. Can you explain, how?

Question 22. Give any four factors which are responsible for the destruction of forests.

Question 23. Draw a figure showing two animals, two birds and a few trees as a part of a forest.

Question 24. All the needs of animals living in a forest are fulfilled. Justify this statement in a few sentences.

Question 25. “Forests are our lifeline.” Write five sentences on this topic.