Class 8 Exam > Class 8 Notes > Short & Long Answer Questions for Class 8 > Very Short Answers - Pollution of Air and Water, Science, Class 8
Very Short Answers - Pollution of Air and Water, Science, Class 8 | Short & Long Answer Questions for Class 8 PDF Download
VERY SHORT ANSWER TYPE QUESTIONS
Q. 1. What is the percentage of nitrogen in atmosphere?
Ans. 78%
Q. 2. What is the percentage of oxygen in atmosphere?
Ans. 21%
Q. 3. Which problem arises by air pollution?
Ans. Respiratory problem
Q. 4. What is smog?
Ans. A thick fog-like layer in the atmosphere is called smog.
Q. 5. Which gases are responsible for acid rain?
Ans. Sulphur dioxide and nitrogen dioxide.
Q. 6. Which gas is responsible for greenhouse effect?
Ans. CO2 (carbon dioxide)
Q. 7. What is global warming?
Ans. Increasing temperature in atmosphere is called global warming.
Q. 8. Which phenomenon causes global warming?
Ans. Greenhouse effect
Q. 9. What is air pollution?
Ans. Addition of pollution in air is called air pollution.
Q . 10. Which gas is responsible for depletion of ozone layer?
Ans. Chlorofluorocarbons (CFCs)
Q . 11. Which fuel are pollution free?
Ans. CNG and LPG
Q . 12. What pollutes Ganga?
Ans. Untreated sewage, dead bodies, garbage, etc.
Q . 13. What do you mean by potable water?
Ans. Water which is suitable for drinking is called potable water.
Q . 14. Which chemical is used to purify water?
Ans. Chlorine
Q . 15. What radiation is absorbed by CO2?
Ans. Infrared radiation
Q . 16. Which rays are harmful for us?
Ans. Ultraviolet rays
Q . 17. Which gas is called greenhouse gas?
Ans. CO2, Methane
Q . 18. What are alternative renewable fuels?
Ans. Solar energy, hydropower and wind energy
Q. 19. What do you mean by ‘Van Mahotsav’?
Ans. When lakhs of trees are planted in July every year, this is called Van Mahotsav.
Q . 20. When was Ganga Action Plan launched?
Ans. In 1985
Q . 21. Name one of the poisonous elements present in the exhaust of automobiles.
Ans. Lead.
The document Very Short Answers - Pollution of Air and Water, Science, Class 8 | Short & Long Answer Questions for Class 8 is a part of the Class 8 Course Short & Long Answer Questions for Class 8.
All you need of Class 8 at this link: Class 8
FAQs on Very Short Answers - Pollution of Air and Water, Science, Class 8 - Short & Long Answer Questions for Class 8
| 1. What are the main causes of air pollution? |  |
Ans. The main causes of air pollution are industrial emissions, vehicle exhaust, burning of fossil fuels, deforestation, and agricultural activities.
| 2. How does air pollution affect human health? | |
Ans. Air pollution can cause respiratory problems such as asthma, bronchitis, and chronic obstructive pulmonary disease (COPD). It can also lead to cardiovascular diseases, allergies, and even lung cancer.
| 3. What are the consequences of water pollution? | |
Ans. Water pollution can lead to the contamination of drinking water sources, causing various diseases like diarrhea, cholera, and typhoid. It can also harm aquatic life, destroy ecosystems, and disrupt the balance of marine ecosystems.
| 4. How can we prevent air pollution? | |
Ans. To prevent air pollution, we can reduce the use of vehicles and promote public transport, use cleaner energy sources, practice proper waste management, plant trees, and support industries that follow sustainable practices.
| 5. What are the sources of water pollution? | |
Ans. The sources of water pollution include industrial waste, sewage discharge, agricultural runoff, oil spills, and improper disposal of chemicals and waste materials.
Related Exams
About this Document
|
4.89/5 Rating |
|
Nov 22, 2024 Last updated |
Document Description: Very Short Answers - Pollution of Air and Water, Science, Class 8 for Class 8 2024 is part of Short & Long Answer Questions for Class 8 preparation.
The notes and questions for Very Short Answers - Pollution of Air and Water, Science, Class 8 have been prepared according to the Class 8 exam syllabus. Information about Very Short Answers - Pollution of Air and Water, Science, Class 8 covers topics
like and Very Short Answers - Pollution of Air and Water, Science, Class 8 Example, for Class 8 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Very Short Answers - Pollution of Air and Water, Science, Class 8.
Introduction of Very Short Answers - Pollution of Air and Water, Science, Class 8 in English is available as part of our Short & Long Answer Questions for Class 8
for Class 8 & Very Short Answers - Pollution of Air and Water, Science, Class 8 in Hindi for Short & Long Answer Questions for Class 8 course.
Download more important topics related with notes, lectures and mock test series for Class 8
Exam by signing up for free. Class 8: Very Short Answers - Pollution of Air and Water, Science, Class 8 | Short & Long Answer Questions for Class 8
Description
Full syllabus notes, lecture & questions for Very Short Answers - Pollution of Air and Water, Science, Class 8 | Short & Long Answer Questions for Class 8 - Class 8 | Plus excerises question with solution to help you revise complete syllabus for Short & Long Answer Questions for Class 8 | Best notes, free PDF download
Information about Very Short Answers - Pollution of Air and Water, Science, Class 8
In this doc you can find the meaning of Very Short Answers - Pollution of Air and Water, Science, Class 8 defined & explained in the simplest way possible. Besides explaining types of
Very Short Answers - Pollution of Air and Water, Science, Class 8 theory, EduRev gives you an ample number of questions to practice Very Short Answers - Pollution of Air and Water, Science, Class 8 tests, examples and also practice Class 8
tests
|
Explore Courses for Class 8 exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
Related Searches
MCQs
,Science
,study material
,ppt
,Very Short Answers - Pollution of Air and Water
,Science
,Free
,video lectures
,mock tests for examination
,Class 8 | Short & Long Answer Questions for Class 8
,Class 8 | Short & Long Answer Questions for Class 8
,shortcuts and tricks
,Semester Notes
,Very Short Answers - Pollution of Air and Water
,past year papers
,Important questions
,practice quizzes
,Extra Questions
,Previous Year Questions with Solutions
,Sample Paper
,Science
,Exam
,Class 8 | Short & Long Answer Questions for Class 8
,Objective type Questions
,Viva Questions
,Summary
,Very Short Answers - Pollution of Air and Water
;
Additional Information about Very Short Answers - Pollution of Air and Water, Science, Class 8 for Class 8 Preparation
Very Short Answers - Pollution of Air and Water, Science, Class 8 Free PDF Download
The Very Short Answers - Pollution of Air and Water, Science, Class 8 is an invaluable resource that delves deep into the core of the Class 8 exam.
These study notes are curated by experts and cover all the essential topics and concepts, making your preparation more efficient and effective.
With the help of these notes, you can grasp complex subjects quickly, revise important points easily,
and reinforce your understanding of key concepts. The study notes are presented in a concise and easy-to-understand manner,
allowing you to optimize your learning process. Whether you're looking for best-recommended books, sample papers, study material,
or toppers' notes, this PDF has got you covered. Download the Very Short Answers - Pollution of Air and Water, Science, Class 8 now and kickstart your journey towards success in the Class 8 exam.
Importance of Very Short Answers - Pollution of Air and Water, Science, Class 8
The importance of Very Short Answers - Pollution of Air and Water, Science, Class 8 cannot be overstated, especially for Class 8 aspirants.
This document holds the key to success in the Class 8 exam.
It offers a detailed understanding of the concept, providing invaluable insights into the topic.
By knowing the concepts well in advance, students can plan their preparation effectively.
Utilize this indispensable guide for a well-rounded preparation and achieve your desired results.
Very Short Answers - Pollution of Air and Water, Science, Class 8 Notes
Very Short Answers - Pollution of Air and Water, Science, Class 8 Notes offer in-depth insights into the specific topic to help you master it with ease.
This comprehensive document covers all aspects related to Very Short Answers - Pollution of Air and Water, Science, Class 8.
It includes detailed information about the exam syllabus, recommended books, and study materials for a well-rounded preparation.
Practice papers and question papers enable you to assess your progress effectively.
Additionally, the paper analysis provides valuable tips for tackling the exam strategically.
Access to Toppers' notes gives you an edge in understanding complex concepts.
Whether you're a beginner or aiming for advanced proficiency, Very Short Answers - Pollution of Air and Water, Science, Class 8 Notes on EduRev are your ultimate resource for success.
Very Short Answers - Pollution of Air and Water, Science, Class 8 Class 8 Questions
The "Very Short Answers - Pollution of Air and Water, Science, Class 8 Class 8 Questions" guide is a valuable resource for all aspiring students preparing for the
Class 8 exam. It focuses on providing a wide range of practice questions to help students gauge
their understanding of the exam topics. These questions cover the entire syllabus, ensuring comprehensive preparation.
The guide includes previous years' question papers for students to familiarize themselves with the exam's format and difficulty level.
Additionally, it offers subject-specific question banks, allowing students to focus on weak areas and improve their performance.
Study Very Short Answers - Pollution of Air and Water, Science, Class 8 on the App
Students of Class 8 can study Very Short Answers - Pollution of Air and Water, Science, Class 8 alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Very Short Answers - Pollution of Air and Water, Science, Class 8,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of Very Short Answers - Pollution of Air and Water, Science, Class 8 is prepared as per the latest Class 8 syllabus.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup