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18. Pollution of Air and Water-Chapter Review Science Class 8 In English
Last Updated : 06 March 2026
Explore science Solutions for Class 8 Chapter 18. Pollution of Air and Water Topic Chapter Review in English medium.
18. Pollution of Air and Water-Chapter Review Science Class 8 In English
Last Updated : 06 March 2026
18. Pollution of Air and Water-Chapter Review Science Class 8 In English
18. Pollution of Air and Water
Chapter Review
Chapter Review:
- The contamination of air by impurities like smoke and poisonous gases which may have a harmful impact on the living and the non-living components, this is called air pollution.
- The substances which contaminate the air and water. These are called pollutants.
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Components of air is Nitrogen 78%, Oxygen 21%, carbon dioxide, argon, and methane.
- Ozone layer prevents us to the ultraviolet rays coming from the sun.
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Ultraviolet rays carry radiations Which harm our body and cause various diseases like cancer and skin disorders.
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The sulpher dioxide and nitrogen dioxide form sulphuric acid and nitric acid react with moisture and water vapour in atmosphere. These form rain acidic . This is called acid rain.
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There is raising the quantity of CO2 in atmosphere resulting in increasing continue average temperature of atmosphere. This is called global warming.
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If the sunlight enters into nursery (glass house) which is not allowed to come out. The trapped heat warms the green plants. Similarly our atmosphere trapped radiation and warms the earth. This effect is known as green house effect.
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The full form of CFCs is Chlorofluorocarbons.
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The full form of WWF is Word wide Fund.
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The green house gases are CO2 , Methane and nitrous oxide etc.
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An ambitious plan to save the river, called the Ganga Action Plan was
launched in 1985. -
Water which is suitable for drinking is called potable water.
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The 4R principle is Reduce, reuse, recycle and recover.
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NCERT Solutions for Class 8 science Chapter 18. Pollution of Air and Water Topic Chapter Review
NCERT Solutions for Class 8 science Chapter 18. Pollution of Air and Water Topic Chapter Review are prepared to help students understand important concepts of the chapter in a simple and clear manner. These solutions are based on the latest CBSE syllabus and follow the official NCERT textbooks. Students who are searching for accurate answers and step-by-step explanations can use these solutions to improve their learning and prepare better for school exams as well as board examinations.
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About Chapter 18. Pollution of Air and Water of Class 8 science
Chapter 18. Pollution of Air and Water is an important part of the Class 8 science syllabus. This chapter explains several key concepts which are essential for understanding the subject in detail. Students often face difficulties while solving textbook questions related to this chapter. That is why NCERT Solutions for Chapter 18. Pollution of Air and Water are provided to explain every concept in a simple and structured way.
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18. Pollution of Air and Water-Chapter Review Science Class 8 In English
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18. Pollution of Air and Water-Chapter Review Science Class 8 In English Study Materials For Class 6 to 12
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