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18. Pollution of Air and Water Science class 8 in English Medium ncert book solutions Additional Questions With Solutions
18. Pollution of Air and Water Additional Questions With Solutions – Complete NCERT Book Solutions for Class 8 Science (English Medium). Get all chapter explanations, extra questions, solved examples and additional practice questions for 18. Pollution of Air and Water Additional Questions With Solutions to help you master concepts and score higher.
18. Pollution of Air and Water Science class 8 in English Medium ncert book solutions Additional Questions With Solutions
NCERT Solutions for Class 8 Science play an important role in helping students understand the concepts of the chapter 18. Pollution of Air and Water clearly. This chapter includes the topic Additional Questions With Solutions, which is essential from both academic and examination point of view. The solutions provided here are prepared strictly according to the latest NCERT syllabus and follow the guidelines of CBSE to ensure accuracy and relevance. Each question is explained in a simple and student-friendly manner so that learners can grasp the concepts without confusion. These NCERT Solutions are useful for regular study, homework help, and exam preparation. All textbook questions are solved step by step to improve problem-solving skills and conceptual clarity. Students of Class 8 studying Science can use these solutions to revise important topics, understand difficult questions, and practise effectively before examinations. The chapter 18. Pollution of Air and Water is explained in a structured way, making it easier for students to connect the theory with the topic Additional Questions With Solutions. By studying these updated NCERT Solutions for Class 8 Science, students can build a strong foundation, boost their confidence, and score better marks in school and board exams.
18. Pollution of Air and Water
Additional Questions With Solutions
Additional Questions With Solutions:
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.
See other sub-topics of this chapter:
1. Chapter Review 2. Text Book Exercise 3. Text Book Exercise 4. Additional Questions With Solutions 5. Additional Questions With Solutions