Pollutants and Their Sources and Their Effects

Q.

What is the full form of CFC?

Q.

Acid rain is caused by an increase in the atmospheric concentration of?

1. O₃ and dust

2. SO₂ and NO₂

3. SO₃ and CO

4. CO₂ and CO

Q.

What are the 2 types of ozone?

Q.

All are particulate pollutant except

1. Soot

2. Dust

3. Smoke

4. Ozone

Q.

CFCs become replaced by which compound today?

Q. Match the following air pollutants in accordance with their environmental effects.

A.Chlorofluorocarbons	E. Acid rain
B. Carbon dioxide	F. Reduces the ability of blood to carry oxygen
C. Sulphur dioxide	G. Green house effect
D. Carbon monoxide	H. Damage ozone layer

1. 
   A-F, B-H, C-G, D-E
2. A-H, B-G, C-E, D-F
3. A-G, B-E, C-F, D-H
4. A-E, B-F, C-G, D-H

Q. What is/are the harmful effect(s) of particulate matter?

1. Affects the rate of photosynthesis and transpiration in plants.
2. Causes bronchitis, asthma and anemia in human beings.
3. Affects nervous system in human beings.
4. Causes fluorosis in human beings.

Q. Match the following air pollutants corresponding to their sources.

A. Sulphur dioxide	1. Combustion of fossil fuels in vehicles
B. Oxides of nitrogen	2. Construction sites
C. Carbon monoxide	3. Petroleum refining
D. Particulate matter	4. Incomplete combustion of fossil fuel

1. A-2, B-3, C-1, D-4
2. A-3, B-1, C-4, D-2
3. A-1, B-3, C-2 D-4
4. A-2, B-4, C-1, D-3

Q. Which of the following pollutants has a smell like rotten eggs?

1. Carbon monoxide
2. Hydrogen sulphide
3. Particulate matter
4. Nitrogen oxides

Q. Identify the source(s) of pollutant which is responsible for acid rain.

1. Incomplete fuel combustion
2. Coal power plants
3. Automobiles
4. Fertilizer plant

Q. Fluoride pollution initially affects

1. Brain
2. Kidneys
3. Teeth
4. Heart

Q. Secondary pollutants are directly emitted from combustion of fossil fuels and industrial operations.

1. True
2. False

Q. Carbon monoxide forms on combining with blood hemoglobin.

1. carboxyhemoglobin
2. carboxyl
3. carbonylhemoglobin

Q.

Shonali wishes to contribute in reducing air pollution. Which vehicle should she use for going to the office?

1. Car

2. Bus

3. Scooter

4. Bicycle

Q.

Assertion: An increase in ozone concentration near the earths surface reduces crop yields.

Reason: Increase in ozone concentration in the stratosphere protects us.

Read the assertion and reason statements carefully and answer the question on the basis of the following options.

1. The assertion is true and the reason is also true; Reason is a correct explanation for Assertion.

2. The assertion is true and the reason is also true; Reason is NOT a correct explanation for Assertion.

3. The assertion is true but the reason is false.

4. The assertion is false but the reason is true.

Q. Identify the main source(s) that cause air pollution due to particulate matter?

1. Volcanoes
2. Pollen grains released by plants
3. Incomplete combustion of fuel
4. Mining

Q.

Observe the picture given alongside which shows the effect of certain gases responsible for causing harm to the ozone layer. Answer the questions that follow :

(a) Label the following in the picture: stratosphere , the Sun , ozone layer, the Earth , and the gas or gases that harm the ozone layer.
(b) What damage is shown to be done to the ozone layer?
(c) Is ozone layer helpful or harmful to living organisms on the earth ?
(d) How its depletion affects living organisms on the earth?

Q.

Name the products of combustion of fossil fuels like coal and petroleum products. How do they affect us and our environment?

Q.

How Ozone is formed?

Q. Does air pollution lead to water pollution?
[3 marks]
[APSCERT]
[Types of Pollution]

Q.

Choose the correct answer from the four options given below.

An example of non-biodegradable waste is :

1. Vegetable peels

2. Sewage

3. Livestock waste

4. DDT

Q.

Which one is nonbiodegradable?

1. sewage

2. vegetable peels

3. livestock waste

4. DDT

Q.

What would happen, if all the oxygen present in the environment is converted to ozone?

1. We will be more protected.

2. It will become poisonous and kill living forms.

3. Ozone is not stable, hence it will be toxic.

4. It will help harmful sun radiations to reach Earth and damage many life forms.

Q. Describe air pollution. What are the major causes of air pollution?

Q.

What is ozone and how does it affect any ecosystem?

Q. Prepration of alcohols by hydroboration and oxidation?

Q. List any three pollutants each of air, water and soil.
Air : .......... .............. ...........
Water : ............. ............. ...........
Soil : ............. ............. ..........

Q.

How do fossil fuels cause pollution?

Q. Heavy metals like lead and which are present in fossil fuels are responsible for air pollution.

1. mercury
2. nitrogen
3. neon

Q. The incomplete combustion of petrol or diesel leads to the emission of which poisonous gas?

1. Methane
2. Ozone
3. Carbon dioxide
4. Carbon monoxide