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![Selina solutions for Concise Chemistry [English] Class 9 ICSE chapter 8 - Atmospheric Pollution - Shaalaa.com](/images/concise-chemistry-english-class-9-icse_6:3baa192b34e3498fa97ae56602d705f0.jpg "Selina solutions for Concise Chemistry [English] Class 9 ICSE chapter 8 - Atmospheric Pollution")
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Solutions for Chapter 8: Atmospheric Pollution
Below listed, you can find solutions for Chapter 8 of CISCE Selina for Concise Chemistry [English] Class 9 ICSE.
Selina solutions for Concise Chemistry [English] Class 9 ICSE 8 Atmospheric Pollution Exercise 8 (A) [Page 131]
Define the following term: Pollution
Define the following term: Pollutant
Define the following term:
Air pollution
Name any four gaseous pollutants.
Name the compounds of sulphur that cause air pollution. Also, state the harmful effects of sulphur compounds.
State: natural sources of air pollution
State: man-made sources of air pollution
How do the oxides of nitrogen enter the atmosphere?
What are their harmful effects?
State the origin and health impact of smog.
What are the harmful effects of oxides of sulphur?
State the main sources and effects of carbon monoxide.
Give the mechanism of the action of carbon monoxide.
How can we control carbon monoxide poisoning?
Selina solutions for Concise Chemistry [English] Class 9 ICSE 8 Atmospheric Pollution Exercise 8 (B) [Page 133]
Why does rainwater have pH of less than 7?
pH of acid rain is sometimes as low as 2. Explain.
Explain the formation of acid rain due to:
Oxides of sulphur
Explain the formation of acid rain due to:
Oxides of nitrogen
What are the causes of acid rain?
Give the impact of acid rain: On plants
Give the impact of acid rain: On soil
Give the impact of acid rain: On water bodies
How does a scrubber help in reducing the formation of acid rain?
Selina solutions for Concise Chemistry [English] Class 9 ICSE 8 Atmospheric Pollution Exercise 8 (C) [Page 134]
What do you understand by the Green House effect?
What are green house gases? How are they responsible for global warming?
State the sources and effects of the following gas:
Carbon dioxide
State the sources and effects of the following gas:
Methane
State the sources and effects of the following gas:
Water vapor
State the ways of reducing the presence of greenhouse gases.
State the effects of greenhouse gases on the atmosphere.
State the role of a greenhouse in growing plants.
Our atmosphere acts as a greenhouse. Explain.
How can we reduce global warming?
Selina solutions for Concise Chemistry [English] Class 9 ICSE 8 Atmospheric Pollution Exercise 8 (D) [Page 137]
What is a pollutant?
What is the effect of the following pollutants on living beings?
Fluorides
What is the effect of the following pollutants on living beings?
Smoke particles
What is the effect of the following pollutants on living beings?
Lead
What is the effect of the following pollutants on living beings?
Mercury compounds
What is the effect of the following pollutants on living beings?
Smog
What is the effect of the following pollutants on living beings?
Nitrogen oxide
What is air pollution? How does this pollution take place?
Name some particulate pollutants.
Why is cigarette-smoking harmful?
What is smog? State its damaging effects.
What do you understand by ppm?
Describe the major air pollutants. How does carbon monoxide pollute our environment?
How do you propose to control:
Carbon monoxide emission
How do you propose to control:
SOx emission
Give the composition, causes, and effects of acid rain.
Explain the effect of sulphur dioxide on the atmosphere.
Explain the formation of ozone in the atmosphere.
What is the function of ozone in the atmosphere?
State the chemicals responsible for ozone layer destruction.
Name any two:
Natural sources of atmospheric pollution.
Name any two:
Gases that are responsible for the formation of acid rain.
Explain the term 'global warming'. State two ways by which global warming can be reduced.
State two effects of ozone depletion.
What is the cause of acid rain? Give any two impacts of acid rain.
Explain the methods of preventing acid rain.
State an advantage of CNG (Compressed Natural Gas).
State how CFC breaks the ozone layer.
Describe the methods of saving the ozone layer.
Fill in the blank:
The pollutants such as NO2, SO2, and SO3 dissolved in the moisture of air are the cause of ____________.
Fill in the blank:
Excessive release of carbon dioxide in the atmosphere is the cause of __________ effect which produces global warming.
Fill in the blank:
The ozone layer prevents the harmful ________ radiation of the sun to reach the earth.
Fill in the blank:
The decrease in the concentration of ozone in the stratosphere is the cause of the formation of __________ holes.
Fill in the blank:
Ozone depletion is mainly caused by the active __________ atoms generated from CFC in the presence of UV radiation.
Select the correct answer:
Excessive release of carbon dioxide in the atmosphere is the cause of
Depletion of ozone
formation of polar vertex
global warming
formation of smog
Select the correct answer:
Inhalation of air polluted with carbon monoxide is dangerous because:
CO combines with O2 dissolved in the blood.
CO combines with hemoglobin of blood.
CO removes water from the body and causes dehydration.
CO causes coagulation of proteins in the body
Select the correct answer:
A decrease in the amount of ozone in the stratosphere is called depletion of the zone and it is caused by
UV radiations of sun
Use of CFC compounds
excessive use of detergents
Use of polychlorinated biphenyls
Solutions for 8: Atmospheric Pollution
Selina solutions for Concise Chemistry [English] Class 9 ICSE chapter 8 - Atmospheric Pollution
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Concepts covered in Concise Chemistry [English] Class 9 ICSE chapter 8 Atmospheric Pollution are Global Warming, Ozone Layer Depletion, Acid Rain, Atmospheric Pollution, Gaseous Pollutants and Their Effects, Green House Effect, Advantage of Green House Effect, Preventive Measures of Global Warming, Ozone.
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