Class 8 Science - Chapter Conservation of Plants and Animals NCERT Solutions | Discuss the effects of deforestation on
Discuss the effects of deforestation on the following:
(a) Wild animals
(b) Environment
(c) Villages (Rural areas)
(d) Cities (Urban areas)
(e) Earth
(f) The next generation
(a) Wild animals:
Forests are the main natural habitat for the wild animals. Deforestation means cutting of trees from the particular area like forest. Trees are cut down for the various purposes like agricultural, industrial and many other. If trees are removed from their habitat then the number of wild animals automatically decreases.
(b) Effects of deforestation on environment:
Deforestation means the removal of the trees. If trees are removed then the level of the carbon dioxide increase or rise up in the environment. Increase in the level of the CO2 is the main reason of increasing the temperature on the earth which leads to the global warming. Deforestation disturbs the water cycle. Deforestation also leads to the drastic changes in the environment like floods, droughts.
(c) Effects of deforestation on villages (Rural areas):
By removing trees, the top layer of the soil will be removed easily by high speed winds or by water. Roots of the plants bind to the soil particles together. In the absence of trees soil erosion occurs readily and land becomes infertile. A fertile land is a source of living for the people who lives in villages.
(d) Effects of deforestation on cities (Urban areas):
Due to deforestation, the level of the carbon dioxide increase in the environment which leads to an increment of the earth’s temperature which is the main cause of the global warming. Carbon dioxide is a polluted gas. In cities, pollution from the vehicles, factories, industries occur generally. Increasing temperature of the earth also disturb the water cycle.
(e) Effects of deforestation on earth:
Deforestation leads to the soil erosion, drought. Flood like dangerous conditions. By deforestation an increment in the risk of the natural calamities. Due to deforestation, the air becomes polluted and a number of diseases on earth.
(f) Effects of deforestation on next generation:
Environmental conditions will change slowly if we remove trees from the earth. It may lead to the global warming, soil erosion, drought, flood, green house effect and many more climatic change conditions. Hence, the next generation will have to face the deforestation consequences.
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- Q:-
Answer in brief:
(a) Why should we conserve biodiversity?
(b) Protected forests are also not completely safe for wild animals. Why?
(c) Some tribals depend on the jungle. How?
(d) What are the causes and consequences of deforestation?
(e) What is Red Data Book?
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- Q:-
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Complete the word puzzle:
Down
1. Species on the verge of extinction.
2. A book carrying information about endangered species.
5. Consequence of deforestation.
Across
1. Species which have vanished.
3. Species found only in a particular habitat.
4. Variety of plants, animals and microorganisms found in an area.
- Q:-
Why should paper be saved? Prepare a list of ways by which you can save paper.
- Q:-
In order to meet the ever-increasing demand in factories and for shelter, trees are being continually cut. Is it justified to cut trees for such projects? Discuss and prepare a brief report.
- Q:-
How can you contribute to the maintenance of green wealth of your locality? Make a list of actions to be taken by you.
- Q:-
What will happen if:
(a) we go on cutting trees.
(b) the habitat of an animal is disturbed.
(c) the top layer of soil is exposed. - Q:-
Explain how deforestation leads to reduced rainfall.
- Q:-
Fill in the blanks:
(a) A place where animals are protected in their natural habitat is called .
(b) Species found only in a particular area is known as .
(c) Migratory birds fly to far away places because of changes.
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