Environmental Chemistry The Atmosphere Test 02

Total Questions: 25

1 - Ozone layer is found in:

A ) troposphere
B ) stratosphere ✅
C ) mesosphere
D ) thermosphere

2 - The ozone decomposition in upper stratosphere is due to absorption of:

A ) low UV radiations
B ) high UV radiations ✅
C ) low IR radiations
D ) high IR radiations

3 - The recombination of O and O2 in mid stratosphere is an:

A ) exothermic reaction ✅
B ) endothermic reaction
C ) heat absorbing process
D ) none of the above

5 - Which is not a characteristic of SO2?

A ) It is a colourless gas
B ) It has irritating smell
C ) It cases suffocating
D ) It done not form sulphuric acid ✅

6 - Which of the following can be used as a fule?

A ) methanol
B ) ethanol
C ) bio-diesal
D ) all of these

7 - The pH of normal rain water is:

A ) 4-6
B ) 5.6-6 ✅
C ) 6-7
D ) 7-8

8 - The pH of acid rain is:

A ) 2
B ) 3
C ) 4 ✅
D ) 5

9 - Ozone is an allotropic form of:

A ) Carbonn
B ) oxygen ✅
C ) Sulphur
D ) Phosphorus

10 - Ultraviolet radiations can cause:

A ) hepatitis
B ) asthma
C ) Skin cancer ✅
D ) night blindness

11 - Which substances are involved in ozone depletion?

A ) Nitrogen
B ) CFC's ✅
C ) hydrocarbons
D ) all of these

12 - The region in which ozone layer deplets is called:

A ) Ozone hole ✅
B ) black hole
C ) both "a" and ''b"
D ) none of the above

13 - Ozone depletion was first noticed over Antarctica in:

A ) 1970s
B ) 1980 s ✅
C ) 1990s
D ) 1960 s

14 - Which is not poisonous gas?

A ) Ozone
B ) carbonn monoxide
C ) Carbon dioxide ✅
D ) all of these

15 - Which gas in atmosphere acts as a glass wall of a green house?

A ) oxygen
B ) Carbon dioxide ✅
C ) Sulphur dioxide
D ) hydrogen

16 - Increased concentration of CO2 in air, results:

A ) decrease in temperature
B ) increase in temperature ✅
C ) temperature remains the same
D ) None of the above

17 - Which is the major effect of global warming?

A ) increase in temperature
B ) rise in sea level
C ) melting of glaciers
D ) all of the above

18 - Higher concentration of CO cause:

A ) fatigue
B ) headache
C ) breathing difficulties
D ) all of the above

19 - In the bacterial decay,the compounds of which element are emitted?

A ) sulphur ✅
B ) phosphorus
C ) iodine
D ) all of the above

20 - Ozone layer is found in:

A ) Upper Stratosphere
B ) mid stratosphere ✅
C ) lower Stratosphere
D ) all of the above

21 - A pollutant is a waste material that pollutes:

A ) air
B ) water
C ) soil
D ) all of these

22 - Which type of pollutants are responsible for changing weather?

A ) air pollutants ✅
B ) water pollutants
C ) soil pollutants
D ) all of the above

23 - Ozone has a smell:

A ) bitter ✅
B ) rotten egg
C ) sweet
D ) none of these

24 - Which of the following is a poisonous gas?

A ) oxygen
B ) ozone ✅
C ) nitrogen
D ) carbon dioxide

25 - The waste products driven out because of the combustion of fossil fuels are called:

A ) primary pollutants ✅
B ) secondary pollutants
C ) tertiary pollutants
D ) none of the above