Toppers Study Toppers Study Toppers StudyGet complete NCERT Solutions for 8 Science 18. Pollution of Air and Water with detailed explanations. Easy-to-understand answers to help students study effectively and score better.
Get complete NCERT Solutions for 8 Science 18. Pollution of Air and Water with detailed explanations. Easy-to-understand answers to help students study effectively and score better.
Preparing for exams becomes easier with Additional Questions With Solutions. Whether you are studying for board exams or mid-term exams, 8 Science Chapter 18. Pollution of Air and Water solutions provide quick revising points, well-structured answers, and additional practice material to help you score better.
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Ques: Name the various components of air.
Ans: Nitrogen 78%, Oxygen 21%, carbon dioxide, argon, and methane.
Ques: What is air pollution?
Ans: 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.
Ques: What is pollutant? Name two such pollutants which are responsible for air pollution.
Ans: The substances which contaminate the air and water. These are called pollutants. Carbon dioxide and carbon monoxide.
Ques: Name the sources of air pollutants.
Ans: Factory, electric reactor, automobile vehicles, Fuels like coal and wood etc.
Ques: Name the element that is responsible for damaging of ozone layer.
Ans: Chlorofluro carbon (CFC).
Ques: What are the sources of Chlorofluro carbon (CFC)?
Ans: Chlorofluro carbon (CFC) are used in refrigerators, air conditioners and aerosole.
Ques: How is ozone layer useful for us?
Ans: Ozone layer prevents us to the ultraviolet rays coming from the sun.
Ques: Why are the ultraviolet rays harmful for us?
Ans: Ultraviolet rays carry radiations Which harm our body and cause various diseases like cancer and skin disorders.
Ques: What is acid rain?
Ans: The sulphur dioxide and nitrogen form sulphuric acid nitric acid react with moisture and water vapour in atmosphere. This is called acid rain.
Additional Questions With Solutions are created by experts to give step-by-step explanations. Around 60–70% of exam questions are based on NCERT concepts. Our 8 Science Chapter 18. Pollution of Air and Water solutions help you understand the core concepts and practice effectively.
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Every NCERT chapter ends with exercises, and solving them is crucial. Our Additional Questions With Solutions include complete solutions for 8 Science Chapter 18. Pollution of Air and Water exercises. With step-by-step answers, you gain clarity and confidence to attempt similar exam questions.
To boost your preparation, we also provide additional important questions with answers. These are prepared from previous year board papers, sample papers, and important concepts of Chapter 18. Pollution of Air and Water. Practicing these ensures you are well-prepared for both board and mid-term exams.
Our Additional Questions With Solutions are useful for both board exams and mid-term exams. For 8 Science, we provide notes, exercises, and important Q&A so that you can revise smartly and write perfect answers in exams.
In short, Additional Questions With Solutions for 8 Science Chapter 18. Pollution of Air and Water are a complete study package. With quick revising points, NCERT exercises, and additional important questions, you can prepare effectively for exams. Make these solutions your study companion and excel in your academic journey.
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