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WorksheetsESDM_Module3_Test1
Total questions: 25
Worksheet time: 25mins
Name
Class
Date
1.
Which of the following gas is more in percentage in the air?
a)
Oxygen
b)
Nitrogen
c)
Water Vapour
d)
Carbon dioxide
2.
Which of the following is a GreenHouse gas
a)
Oxygen
b)
Nitrogen
c)
Hydrogen
d)
Carbon dioxide
3.
Which of the following is not a source of air pollution?
a)
Automobile exhaust
b)
Windmill
c)
Burning of firewood
d)
Power plant
4.
Fundamental causes of air pollution are
a)
Industrialization
b)
Globalization
c)
Population Growth
d)
All of the above
5.
The gas produced during rice cultivation is
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
6.
The sources of Chlorofluorocarbons are
a)
Transport vehicles
b)
Refrigerents
c)
Burning of fuels
d)
All of the above
7.
Which of the following is a secondary air pollutant
a)
Ozone
b)
Carbon dioxide
c)
Carbon monoxide
d)
Methane
8.
Smoke, fumes, ash, dust, nitric oxide and sulphur dioxide are the main sources of ________.
a)
Primary Pollutants
b)
Secondary pollutants
c)
Bio-Degradable Pollutants
d)
None of the above
9.
Increased levels of air pollution results in _______.
a)
Soil erosion
b)
Global warming
c)
Respiratory Problems
d)
All of the above
10.
Which of the following particles is called the particulate pollutants?
a)
Ozone
b)
Radon
c)
Fly ash
d)
Ethylene
11.
Which of the following statements is true about SMOG?
a)
SMOG is derived from the fog
b)
SMOG is derived from smoke
c)
SMOG is derived from water vapour
d)
SMOG is derived from both fog and smoke
12.
Global warming causes
a)
Melting of ice caps
b)
Rise in sea level
c)
Formation of cyclone
d)
All of the above
13.
Which of the following rivers is called the world’s most polluted river?
a)
Ganga River
b)
Chenab River
c)
Cauvery River
d)
Yamuna River
14.
Which of the following are the primary causes of water pollution?
a)
Plants
b)
Animals
c)
Human Activities
d)
None of these
15.
Which of the following is mainly responsible for the causes of water pollution?
a)
Afforestation
b)
Oil refineries
c)
Paper factories
d)
Both oil refineries and paper factories
16.
Which of the following is a waterborne disease?
a)
Typhoid
b)
Cholera
c)
Diarrhoea
d)
All of the above
17.
Which of the following is not a point source for water pollution
a)
Sewage pipes
b)
Industrial sites
c)
Injection wells
d)
Automobiles
18.
The --------- is an important requirement of the aquatic life.
a)
Dissolved Nitrogen
b)
Dissolved Chlorine
c)
Dissolved Oxygen
d)
Dissolved Methane
19.
What is the full form of BOD?
a)
Biochemical Oxygen Demand
b)
Biological Oxygen Demand
c)
Biometric oxygen deep water
d)
Biological oxygen deep water
20.
The process of nutrient enrichment is termed as
a)
Eutrophication
b)
Limiting Nutrients
c)
Enrichment
d)
None of the above
21.
Excess pesticides causes
a)
Eutrophication
b)
Biomagnification
c)
Reduced Dissolved Oxygen
d)
None of the above
22.
Minamata disease is caused by ............... poisoning of water
a)
Mercury
b)
Arsenic
c)
Flourine
d)
Carbon monoxide
23.
Which of the following is a preliminary water treatment process
a)
Screening
b)
Grinding
c)
Skimming Tank
d)
All of the above
24.
Trickling filtration is a ..................
a)
Priliminary Treatment
b)
Primary Treatment
c)
Secondary Treatment
d)
Tertiary Treatment
25.
Endosulfan tragedy occured in
a)
Kasargod
b)
Kannur
c)
Kozhikode
d)
Wayanad
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