Explain how deforestation leads to reduced rainfall.
Deforestation means removal of trees. Deforestation is done for various purposes like for expanding agricultural and industrial area. Plants leaves oxygen gas and absorb carbon dioxide from the environment. If deforestation occurs then the level of the carbon dioxide will increase in the environment which will trap more solar radiations that leads to global warming. It may increase the temperature of the earth that may also lead to the disturbance of water cycle. If the water cycle is disturbed then the rainfall pattern is also disturbed. It may leads to drought.
Popular Questions of Class 8 Science
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Describe with the help of a diagram an instrument which can be used to detect a charged body.
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Sketch larynx and explain its function in your own words.
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Arrange the following boxes in proper order to make a flow chart of sugarcane crop production.
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Make a labelled diagram of a candle flame.
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What is metamorphosis? Give examples.
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The following Table shows the total power shortage in India from 1991– 1997. Show the data in the form of a graph. Plot shortage percentage for the years on the Y-axis and the year on the X-axis.
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Make sketches of animal and plant cells. State three differences between them.
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What is a constellation? Name any two constellations.
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Describe the construction of a kaleidoscope.
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Complete the crossword with the help of clues given below:
Across
1. This is necessary for photosynthesis.
3. Term for component present in the cytoplasm.
6. The living substance in the cell.
8. Units of inheritance present on the chromosomes.Down
1. Green plastids.
2. Formed by collection of tissues.
4. It separates the contents of the cell from the surrounding medium.
5. Empty structure in the cytoplasm.
7. A group of cells.
Recently Viewed Questions of Class 8 Science
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Make a sketch of the human nerve cell. What function do nerve cells perform?
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Explain why plastic containers are favoured for storing food.
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What happens when
(a) Dilute sulphuric acid is poured on a copper plate?
(b) Iron nails are placed in copper sulphate solution?
Write word equations of the reactions involved. - Q:-
Explain why chloroplasts are found only in plant cells?
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The radius of Jupiter is 11 times the radius of the Earth. Calculate the ratio of the volumes of Jupiter and the Earth. How many Earths can Jupiter accomodate?
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The bulb does not glow in the setup shown in Fig.14.10. List the possible reasons. Explain your answer.
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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.
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A blacksmith hammers a hot piece of iron while making a tool. How does the force due to hammering affect the piece of iron?
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Give examples to show that friction is both a friend and a foe.
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Word game : Use the clues to work out the words.
Across
3. Protruding voice box in boys
4. Glands without ducts
7. Endocrine gland attached to brain
8. Secretion of endocrine glands
9. Pancreatic hormone
10. Female hormoneDown
1. Male hormone
2. Secretes thyroxine
3. Another term for teenage
5. Hormone reaches here through blood stream
6. Voice box
7. Term for changes at adolescence
- NCERT Chapter