What is heat pollution, what causes it and what are the dangers? 20 Questions 1.What is water pollution? Slide 2: What is wrong with the water? CFC is: (a) Chloro fluoro carbon (b) Carbon fluo ro carbon (c) Carbon fourme carbon (d) Carbon fluoro chloro. Sample Paragraph . Air pollution can Water pollution is detected in laboratories, where small samples of water are analysed for different contaminants. Why does water sometimes smell like rotten eggs? These are bacteria, viruses, protozoa and parasitic worms that enter sewage systems and untreated waste. This is the kind of pollution that is commonly known as heat pollution or thermal pollution. But the littering of the oceans has since become a hot topic, one that concerns many people and receives extensive, frequent media coverage. 7.How much of Earths surface is covered by water? That is why rain with a lower pH, due to dissolved industrial emissions, is called acid rain. August 10, 2020 by Kishen. - What are the major water pollutants? Laboratories also use computer models to determine what dangers there can be in certain waters. Question 10: How is soil pollution caused ? It can be removed by using a specially suited cleaning agent. 9.How many different kinds of pesticides have been found in the U.S groundwater? Water contamination affects groundwater, lakes, rivers, and oceans too. MCQ Questions for Class 8 Science: Ch 18 Pollution of Air and Water. Name the substances which contaminate the air. When humans drink polluted water it often has serious effects on their health. Water can also be polluted by a number of organic compounds such as oil, plastics and pesticides, which are harmful to humans and all plants and animals in the water. These gasses also dissolve in rainwater. Questions :-1. Access the answers to hundreds of Water pollution questions that are explained in a way that's easy for you to understand. c) air pollution. Back to Science for Kids - Where does water pollution come from? Earth is the only planet to have liquid water on its surface. A very dangerous category is suspended sediment, because it causes depletion in the water's light absorption and the particles spread dangerous compounds such as pesticides through the water. The lower the pH, the more acid the substance is. Nonpoint sources are sources that cannot be traced to a single site of discharge. BOOK FREE CLASS; COMPETITIVE EXAMS . 3,469 Questions best trending new unanswered d) soil pollution. Water pollution is the pollution of bodies of water such as lakes, rivers, seas, the oceans as well as groundwater. The industry now emits great amounts of acidifying gasses, such as sulphuric oxides and carbon monoxide. c) oil spills. Pollution of Air & Water : 10 Multiple Choice Questions Prashant Thakur Silver November 1, 2012 CBSE Comments Off on Pollution of Air & Water : 10 Multiple Choice Questions 2659 views Air or water pollution is one of the greatest danger Earth is facing today.The contamination of air or water does not just affect the living beings only , but also non living things are negatively affected . 8. … Question Title * 1. You can also find Social Science Class 10 Important Questions With Answers Pdf from the year 2010 to 2020 CBSE board exams. Living organisms such as fish can also be used for the detection of water pollution. For more information about this, you can take a look at thermal pollution. Test your knowledge with MCQs on water pollution, causes and its effects. Car oil; Gas; Car tires; Garbage; Algae; Slide 4: Here is a photo of a mine. It harms human health and wellbeing, reduces quality of life, and can negatively impact the economy. How can we prevent the spread of marine litter? 10 questions and answers on marine litter For many years, the pollution of the oceans caused by plastic waste received little attention from the public. Pollution is one of the most concerned and discussed topics of the environment. When water smells like rotten eggs we can conclude that there is hydrogen present, due to a shortage of oxygen in the specific water. Water Pollution. Question 11: What is the effect of pollution on soil? Living organisms such as fish can also be used for the detection of water pollution. Another class of water pollutants are nutrients; they are water-soluble nitrates and phosphates that cause excessive growth of algae and other water plants, which deplete the water's oxygen supply. Examples of nonpoint sources are: acid deposition from the air, traffic, pollutants that are spread through rivers and pollutants that enter the water through groundwater. 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