Its harmful effects are as follows: Q8- Describe the ‘Green House Effect’ in your own words? Learn about pollution of air and water and know how to prevent pollution. (ii) Using recycle material generates less solid wastage. Copyright © 2021 - 2021 The learner will: define potable water as water that is suitable for drinking and explain that it is a limited natural resource. This has caused the Taj Mahal becoming pale. The roof allows infra red rays to enter but after reflection, they are not allowed to go back. Make layers in it with paper napkin or a fine cloth followed by, cotton, sand and then gravel. Describe the threat to the beauty of the Taj Mahal? Find out how acid rain is a threat to monuments. Very nice and intrested to learn ...but I see the same things are in my book ...no extra information....please add extra information, Very very helpful in study and doing notes thanks my dear drone study, Physics Chemistry Mathematics Biology (i) While brushing your teeth, leaving the tap running may waste several litres of water. Air and water pollution is one of the most common topics that are repeatedly asked in Class 8 … why humans do not see that environment is polluted, this topic is very good and helpfull in study. A10- Acid rain is the major threat to the beauty of the Taj Mahal. Each year, human beings generate millions of tons of wastes in form of garbage, refuse, or trash. Students investigate the pollutants on the wooden block. We should replace our vehicle fuel, diesel and petrol by LPG and CNG. It contains food wastes, detergents, microorganisms, etc. The chemicals released include arsenic, lead and fluorides which lead to toxicity in plants and animals. Pollutants are also added to the atmosphere by certain human activities. The harmful chemicals like arsenic, lead, etc. It has also helped me in my exams to revise chapter easily and I was able to score god marks in my exams. Water used for washing vegetables may be used to water plants in the garden. 4.With this information, the class should hypothesize the effects air pollution has on plants, as well as animals. Key points to Prevent Air Pollution: When acid rain falls on it, this result into a reaction between the acidic water and marble resulting into the deterioration of the building. If such water is used by us, it can cause various infections. 2. All rights Reserved. Your email address will not be published. as per NCERT Book used in CBSE and other Schools. Many problems related to respiratory system might be caused due to air pollution. Therefore, the overall temperature of earth’s surface rises. One of the reasons for global warming is green house effect. Various diseases like cholera, diarrhea, jaundice, etc. So we should not create wastage by reducing the uses of goods. 18.1). Q10- Describe the threat to the beauty of the Taj Mahal? The chemicals released include arsenic, lead and fluorides which lead to toxicity in plants and animals. Oxygen carrying capacity of blood reduces because of improper burning of vehicle fuels; As the vehicles emit high levels of pollutants like carbon monoxide, carbon dioxide, nitrogen oxides and smoke into atmosphere. Required fields are marked *, About | Privacy Policy | Disclaimer | Sitemap. Because of human activities the amount of CO2 level has increased in the atmosphere which traps heat and does not allow heat to escape into space. Make a list of measures that would help your town to ensure the supply of clean water to all its residents? ((w.adpushup = w.adpushup || {}).control = (w.adpushup.control || [])).push(k); As a result, the average temperature of the earth’s atmosphere is gradually increasing. The bacteria present in the faeces of mammals are indicators of the quality of water. World Wide Fund for Nature (WWF)’s study found that Ganga is one of the ten most endangered rivers in the world. Examples are oil refineries, paper factories, textile and sugar mills and chemical factories. 6. Keywords: water quality, alkalinity, nitrate, pH, and biotic index; Lesson Plan Grade Level: ninth through twelfth; Total Time Required: one half-day at streams and two class periods; Setting: classroom and a local stream that passes through possible pollution areas such as cow pastures and other agricultural areas (along fields), or sewage treatment plant or urban area As you all know that water is very important because it is used for various purposes such as drinking, bathing, washing etc. It may have some kind of impurities present in it in the form of micro organism. Get Revision notes of Class 8 th Science Chapter 18 Pollution of air and water to score good marks in your Exams. Chemical process like chlorination can be used for treating water. document.write(''); Pollution is the introduction of harmful or poisonous substances into environment that may cause adverse effects. It is a poisonous gas. 5. Water treatment plants should be installed in all industrial areas. 3. Download Lesson Plan . Now we will discuss  the different types of pollution: 1. Saturday 16th January 2021. 3. Teaching Kids About Pollution, Air, Land, & Water Pollution Activities, Pollution Printables for Kids and Earth Day Activities, Over 120+ Earth Day Ideas, Awesome Ways to Teach Kids About Pollution, and Pollution Activities for Kids, Pollution Projects for Kids, Earth Day Theme for Preschool and Kindergarten, Ways to help protect the Earth By volume, about 78% of this mixture has nitrogen gas and about 21% is oxygen. Reuse: We can reuse the things in our daily routine work so that it will reduce the amount of wastage. Laws for industrial units should be strictly implemented to stop the throwing of wastes in water. The things which pollute the water are known as water pollutants. If such fecal contaminated water is consumed then it can cause many infections. There is reverse osmosis system present in such filters which make water pure. Acid Rain: Not only this there are many other monuments which are a heritage property for India are getting spoilt because of air pollution. 2. River Ganga is one of the ten most endangered rivers in the world. Please contact us if you have any questions or would like to check out relevant equipment. So, the Ganga action plan was not as successful as it was thought. The idea of reduce, reuse and recycle should be incorporated for prevention of water pollution. Boiling: Many households use boiling as a method for obtaining safe drinking water. Also, there are visibility problems in affected areas. We should properly dispose the garbage and not burn it. Taj Mahal is a very beautiful monument in our country. Its main component is methane. Acid rain corrodes the outer surface of buildings. It contains oxides of nitrogen and causes problems in breathing, cough, etc. So we should reduce the water uses for brushing teeth. 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