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Forests: Our Lifeline Class 7 MCQs Questions with Answers
I. Choose the correct option.
Question 1.
Which of the following is influenced by forests?
(a) Temperature
(b) Climate
(c) Animals
(d) All of these
Answer
Answer: (d) All of these
Question 2.
Which of the following is a forest plant?
(a) Sheesham
(b) Neem
(c) Bamboo
(d) All of these
Answer
Answer: (d) All of these
Question 3.
The branchy part of a tree above the stem is called
(a) leaves
(b) crown
(c) saplings
(d) canopy
Answer
Answer: (b) crown
Question 4.
Which of the following is not the name of a tree?
(a) Teak
(b) Sal
(c) Porcupine
(d) Kachnar
Answer
Answer: (c) Porcupine
Question 5.
Which kind of plants generally constitute understorey layer in the forest?
(a) Grass
(b) Shrubs
(c) Tall trees
(d) Herbs
Answer
Answer: (b) Shrubs
Question 6.
The smallest wild animal amongst the following is
(a) fox
(b) boar
(c) bison
(d) porcupine
Answer
Answer: (d) porcupine
Question 7.
Name the organism on which all animals depend for food.
(a) Humus
(b) Plants
(c) Insects
(d) Crops
Answer
Answer: (b) Plants
Question 8.
Decomposers convert the dead plants and animals into
(a) humus
(b) oxygen
(c) litter
(d) fertilisers
Answer
Answer: (a) humus
Question 9.
What are known as ‘green lungs’?
(a) Forests
(b) Grasshoppers
(c) Rivers
(d) All of these
Answer
Answer: (a) Forests
Question 10.
Which of the following we can get from forests?
(a) Food
(b) Shelter
(c) Fibre
(d) All of these
Answer
Answer: (d) All of these
Question 11.
Which of the following is an animal product?
(a) Rubber
(b) Catechu
(c) Gum
(d) Honey
Answer
Answer: (d) Honey
Question 12.
Thing that is not obtained from the wood is
(a) paper
(b) thermocol
(c) matchsticks
(d) plywood
Answer
Answer: (b) thermocol
Question 13.
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
Answer
Answer: (c) creating flood conditions
Question 14.
Deforestation will lead to decrease in
(a) soil erosion
(b) rainfall
(c) drought
(d) global warming
Answer
Answer: (b) rainfall
Question 15.
Greenhouse gases
(a) trap heat of the sun
(b) are green in colour
(c) do not trap heat of the sun
(d) smell foul
Answer
Answer: (a) trap heat of the sun
II. Fill In the Blanks
Question 1.
Forests are known as the ……………… of the earth.
Answer
Answer: Lungs
Question 2.
The uppermost layer of the forest is known as ……………… layer.
Answer
Answer: emergent
Question 3.
The branches of the tall trees look like a roof over the other plants in the forest. This is called a ………………
Answer
Answer: canopy
Question 4.
……………… form the lowest layer of the forest.
Answer
Answer: Herbs
Question 5.
Many food chains together constitute a ………………
Answer
Answer: food web
Question 6.
Some microorganisms feed on dead and decaying animal tissues and convert them into a dark coloured substance called ………………
Answer
Answer: humus
Question 7.
Microorganisms which convert dead and decaying plants and animals into humus are called ………………
Answer
Answer: decomposers
Question 8.
……………… is an example of scavenger.
Answer
Answer: Vulture
Question 9.
In a food chain, plants are the ………………
Answer
Answer: producer
Question 10.
Some animals in the forest could be recognised by forest officers by their ……………… and ………………
Answer
Answer: droppings; footprints
Question 11.
Forests protect the ……………… from erosion.
Answer
Answer: soil
Question 12.
The presence of ……………… ensures that the nutrients from dead and decaying organisms are present in soil.
Answer
Answer: humus
Question 13.
Different layers of vegetation provides ……………… and ……………… for the animals.
Answer
Answer: food; shelter
Question 14.
Forests are ……………… for a large number of animals.
Answer
Answer: habitat
Question 15.
Planting trees on a large scale is called ………………
Answer
Answer: afforestation
III. True or False
Question 1.
Forests are harmful for living beings.
Answer
Answer: False
Question 2.
Tiger is a wild animal.
Answer
Answer: True
Question 3.
Forests are a habitat for a large number of animals.
Answer
Answer: True
Question 4.
Sheesham is a forest plant.
Answer
Answer: True
Question 5.
Crown is the branchy part of a tree above the stem.
Answer
Answer: True
Question 6.
Only small trees form canopy.
Answer
Answer: False
Question 7.
All trees are of same shape and size.
Answer
Answer: False
Question 8.
Shrubs and small trees form the canopy of the forest.
Answer
Answer: True
Question 9.
All animals, whether herbivores or carnivores, depend on plants ultimately for their food.
Answer
Answer: True
Question 10.
Vulture is an example of scavenger.
Answer
Answer: True
Question 11.
Green plants are autotrophs.
Answer
Answer: True
Question 12.
Human beings are autotrophs.
Answer
Answer: False
Question 13.
Decomposers convert dead plant and animal tissues into humus.
Answer
Answer: True
Question 14.
Forests maintain the O2-CO2 balance in the atmosphere.
Answer
Answer: True
Question 15.
The dead and decaying matter is always moist and warm.
Answer
Answer: True
IV. Match the Following
| Column I | Column II |
| 1. Deer, rabbit | (a) Who eats whom |
| 2. Food chain | (b) Floor of forest |
| 3. Bacteria and fungus | (c) Tertiary consumers |
| 4. Herbs | (d) Forests |
| 5. Giant and tall trees | (e) Decomposers |
| 6. Green plants | (f) Food web |
| 7. Dynamic living entity | (g) Vulture |
| 8. Lion and tiger | (h) Primary consumers |
| 9. Group of food chains | (i) Top layer of forest |
| 10. Scavenger | (j) Producer |
Answer
Answer:
| Column I | Column II |
| 1. Deer, rabbit | (h) Primary consumers |
| 2. Food chain | (a) Who eats whom |
| 3. Bacteria and fungus | (e) Decomposers |
| 4. Herbs | (b) Floor of forest |
| 5. Giant and tall trees | (i) Top layer of forest |
| 6. Green plants | (j) Producer |
| 7. Dynamic living entity | (d) Forests |
| 8. Lion and tiger | (c) Tertiary consumers |
| 9. Group of food chains | (f) Food web |
| 10. Scavenger | (g) Vulture |
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