1 ) Pollutants are the factors that affect the natural functions of ecosystem.
A ) False
B ) True
Ans B ) True
2 ) The air pollutant that causes silicosis.
A ) Pesticides
B ) Dust
C ) Particulate matter
Ans B ) Dust
3 ) Find the odd one out
A ) Irritation of eyes
B ) Respiratory disorders
C ) Hepatitis
D ) Asthma
Ans C ) Hepatitis
4 ) Erosion of historical monuments: Acid rain :: Global warming: ……………
A ) Air pollution
B ) Green-house effect
Ans B ) Green-house effect
5 ) Many biotic and abiotic factors are added to water due to soil erosion.
A ) True
B ) False
Ans A ) True
6 ) Irritation of eyes : Air pollution :: Typhoid : ……………
A ) Water pollution
B ) Soil Pollution
Ans A ) Water pollution
7 ) Soil pollution occurs due to mixing of human wastes, birds and animal waste.
A ) True
B ) False
Ans A ) True
8 ) Hydrogen sulphide and sulphur dioxide gas emerge out through volcanic eruption.
A ) False
B ) True
Ans B ) True
9 ) The pollution that causes growth retardation in plants along with slowing down of rate of photosynthesis.
A ) Air pollution
B ) Water
C ) Soil
Ans A ) Air pollution
10 ) Bacteria: Biological pollutant :: Weedicides: ……………
A ) Organic pollutant
B ) Inorganic pollutant
Ans A ) Organic pollutant
11 ) Forest fire is considered to be natural cause for water pollution.
A ) True
B ) False
Ans B ) False
12 ) Methane: Air pollution :: Aquatic weeds: ……………
A ) Water pollution
B ) Soil pollution
Ans A ) Water pollution
13 ) Diseases spread through various pathogens.
A ) False
B ) True
Ans B ) True
14 ) Algal Growth : Water pollution: Leaching of toxic substances: ……………
A ) Air pollution
B ) Soil pollution
Ans B ) Soil pollution
15 ) The air pollutant that causes irritation of respiratory tract and lungs.
A ) CO2
B ) CO
C ) Oxides of nitrogen
Ans C ) Oxides of nitrogen
16 ) is a manmade reason for air pollution.
A ) Microbes in air
B ) Burning of solid waste
C ) Volcanic eruption
Ans B ) Burning of solid waste
17 ) Air is a homogeneous mixture of different gases.
A ) True
B ) False
Ans A ) True
18 ) The problem of water pollution increases due to pollution.
A ) Air
B ) Soil
Ans B ) Soil
19 ) Pollution occurs due to increasing population.
A ) True
B ) False
Ans A ) True
20 ) Find the odd one out
A ) Bleaching chemicals
B ) Burning of timber
C ) Disposal of floral offerings
D ) Thermal power plant
Ans B ) Burning of timber
21 ) Government body that that supervise and checks the pollution in industries.
A ) Maharashtra Pollution Control Board
B ) Pollution Control Board in Maharashtra
Ans A ) Maharashtra Pollution Control Board
22 ) pollution is caused by harmful substances like poisonous gases, smoke, particulate matter and
microbes.
A ) Water
B ) Air
C ) Soil
Ans B ) Air
23 ) Oil spillage is a natural reason for water pollution.
A ) False
B ) True
Ans A ) False
24 ) CO2 plays very important role of absorption of solar heat.
A ) True
B ) False
Ans A ) True
24 ) Contamination of natural environment that will be harmful to ecosystem is called as ……………
A ) Pollution
B ) Pollutant
Ans A ) Pollution
25 ) Icebergs and glaciers are melting due to acid rain.
A ) True
B ) False
Ans B ) False
26 ) makes the environment poisonous and unhealthy.
A ) Pollutants
B ) Biotic factors
C ) Abiotic factors
Ans A ) Pollutants
27 ) Ozone layer is present above the stratosphere.
A ) False
B ) True
Ans A ) False
28 )
| Column-A | Column-B | ||
| i. | Water pollution and prevention act | a) | 1981 |
| ii. | Air pollution and prevention act | b) | 1986 |
| iii. | Environment protection act | c) | 1974 |
A )
| i. | Water pollution and prevention act | 1974 |
| ii. | Air pollution and prevention act | 1986 |
| iii. | Environment protection act | 1981 |
| i. | Water pollution and prevention act | 1974 |
| ii. | Air pollution and prevention act | 1981 |
| iii. | Environment protection act | 1986 |
B )
Ans
| i. | Water pollution and prevention act | 1974 |
| ii. | Air pollution and prevention act | 1981 |
| iii. | Environment protection act | 1986 |
B )
29 ) is one of the factors causing pollution on the earth.
A ) Afforestation
B ) Industrialization
Ans B ) Industrialization
30 ) Out of the total land area of the soil, very large area of land is available for human use.
A ) False
B ) True
Ans A ) False
31 ) The compound that lowers the oxygen carrying capacity of the blood.
A ) CO2
B ) CO
C ) Carbon monoxide
Ans C ) Carbon monoxide
32 ) If wet waste is dumped at wrong place instead of composting, pathogens grow upon it.
A ) False
B ) True
Ans B ) True
33 ) river in Tamilnadu is referred to as Puzzar (Gutter river).
A ) Palar
B ) Kaveri
Ans A ) Palar
34 ) Find the odd one out
A ) Sulphur dioxide
B ) Carbon monoxide
C ) Methane
D ) Nematodes
Ans D ) Nematodes
35 ) Which of the following is NOT a cause of air pollution?
A ) Particulate matter
B ) Nitrous oxides
C ) Pollens
D ) Nematodes
Ans D ) Nematodes
36 ) The natural cause of air pollution is A ) Burning of fuels
B ) Industrialization
C ) Forest fires
D ) Atomic energy plants
Ans C ) Forest fires
37 )
| Column-A | Column-B | ||
| i. | Air pollutant | a) | Endrin |
| ii. | Water pollutant | b) | Oxides of nitrogen |
| c) | Silicosis | ||
A )
| i. | Air pollutant | Silicosis | |
| ii. | Water pollutant | Oxides of nitrogen | |
| i. | Air pollutant | Silicosis | |
| ii. | Water pollutant | Endrin | |
B )
Ans
| i. | Air pollutant | Silicosis |
| ii. | Water pollutant | Endrin |
B )
38 ) Ban over CFC is a preventive measure against water pollution.
A ) False
B ) True
Ans A ) False
39 ) pollutants are destroyed in the due course of time by nature’s rule.
A ) Natural
B ) Manmade
Ans A ) Natural
40 ) Complete the following table
| Air Pollutants | Effects | |
| i. | …………… | Irritation of eyes |
| ii. | Dust | …………… |
| iii. | …………… | Skin cancer, Asthma |
A )
| Air Pollutants | Effects | |
| i. | Sulphur dioxide | Irritation of eyes |
| ii. | Dust | Silicosis |
| iii. | Methane | Skin cancer, Asthma |
| Air Pollutants | Effects | |
| i. | Carbon dioxide | Irritation of eyes |
| ii. | Dust | Respiratory diseases |
| iii. | Methane | Skin cancer, Asthma |
B )
Ans
| Air Pollutants | Effects | |
| i. | Sulphur dioxide | Irritation of eyes |
| ii. | Dust | Silicosis |
| iii. | Methane | Skin cancer, Asthma |
A )
41 ) Worst ever industrial accident that occurred in India during 1984.
A ) Bhopal gas accident
B ) Bihar gas accident
Ans A ) Bhopal gas accident
42 ) Earthquakes are considered as the natural reason for causing air pollution.
A ) True
B ) False
Ans A ) True
43 ) Global temperature is gradually increasing due to green-house effect.
A ) True
B ) False
Ans A ) True
44 ) Excessive growth of aquatic weeds results in.
A ) Faster decomposition of organic matter
B ) Depletion of oxygen levels
C ) Silicosis
D ) Increase in salt content of water
Ans B ) Depletion of oxygen levels
45 ) Acidity of the soil and water bodies increases due to acid rain.
A ) True
B ) False
Ans A ) True
46 ) There should be proper disposal of stinking waste generated in cities.
A ) True
B ) False
Ans A ) True
47 ) Nitrous oxide, methane and CFC are considered as green-house gases.
A ) True
B ) False
Ans A ) True
48 ) Heavy metals like mercury and cadmium are absorbed by plants and thus enter food chain.
A ) True
B ) False
Ans A ) True
49 ) Aliments of liver, kidneys are the effects on human beings due to pollution.
A ) Air
B ) Water
Ans B ) Water
50 ) Match the following
| Column-A | Column-B | ||
| i. | Ozone hole | a) | Increase in Global temperature |
| ii. | Melting of polar ice | b) | Chlorofluorocarbons |
| c) | Add to greenhouse effect |
A )
| i. | Ozone hole | Chlorofluorocarbons |
| ii. | Melting of polar ice | Increase in global temperature |
| i. | Ozone hole | Add to greenhouse effect |
| ii. | Melting of polar ice | Increase in global temperature |
B )
Ans
| i. | Ozone hole | Chlorofluorocarbons |
| ii. | Melting of polar ice | Increase in global temperature |
A )
51 ) Boards indicating the air quality index are displayed in busy squares in metro cities.
A ) True
B ) False
Ans A ) True
52 ) Ozone layer prevents the earth from ultraviolet rays of the Sun.
A ) False
B ) True
Ans B ) True
53 ) is a natural reason for air pollution.
A ) Forest fires
B ) Fuels
C ) Atomic energy plants
Ans A ) Forest fires
54 ) Many problems have arisen on the earth due to interference in the nature.
A ) Environmental
B ) Human
Ans B ) Human
55 ) Carbon dioxide gas is released from atomic energy plants.
A ) True
B ) False
Ans B ) False
56 ) Excessive algal growth pollutes …………….
A ) Soil
B ) Water
Ans B ) Water
57 ) Excessive use of chemical fertilizers can cause water pollution.
A ) False
B ) True
Ans B ) True
58 ) Find the odd one out.
A ) Industrialization
B ) Mining
C ) Forest fires
D ) Transportation
Ans C ) Forest fires
59 ) Arsenic : Inorganic pollutants :: Algae: ……………
A ) Inorganic pollutant
B ) Biological pollutant
Ans B ) Biological pollutant
60 ) Soil fertility gets affected due to water pollution.
A ) True
B ) False
Ans A ) True
61 ) Spores of bacteria and fungi are mixed with air causing air pollution.
A ) True
B ) False
Ans A ) True
62 ) Soil fertility decreases due to either natural or manmade reasons.
A ) True
B ) False
Ans A ) True
63 ) Diseases like hepatitis, typhoid are mainly caused due to pollution.
A ) Air
B ) Water
C ) Soil
Ans B ) Water
64 ) The city that was named as ‘Black City’ when smoke and soot caused night like situation.
A ) London
B ) Petersburg
C ) Ireland
Ans B ) Petersburg
65 ) Erosion of buildings and historical monuments occurs due to global warming.
A ) False
B ) True
Ans A ) False
66 ) Excessive algal bloom pollutes water.
A ) False
B ) True
Ans B ) True
67 ) Pollutants do not cause any harmful effects on biotic and abiotic factors.
A ) True
B ) False
Ans B ) False
68 ) Find the odd one out
A ) Algal bloom
B ) Acid rain
C ) Global warming
D ) Green-house effect
Ans A ) Algal bloom
69 ) Find the odd one out
A ) Retarded plant growth
B ) Leaching of toxic substances
C ) Adverse effects on sea birds
D ) Decreased dissolved oxygen level
Ans B ) Leaching of toxic substances
70 ) Deformities of bones and hypertension are the effects of water pollution on humans.
A ) True
B ) False
Ans A ) True
71 ) Due to acidification of water in water bodies and pipes, leaching of metal and plastic materials occur in water.
A ) False
B ) True
Ans B ) True
72 ) Find the odd one out.
A ) Kerosene
B ) Petrol
C ) LPG
D ) Biogas
Ans D ) Biogas
