Environmental Chemistry The Atmosphere Test 01

Total Questions: 26

1 - About 99% atmosphere's mass lies within:

A ) 30 kilometres ✅
B ) 35 kilometres
C ) 15 kilometres
D ) 11 kilometres

3 - Just above the Earth's surface is:

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

4 - A group of gases that maintains temperature of atmosphere is:

A ) carbon dioxide and water vapours ✅
B ) nitrogen and carbon dioxide
C ) oxygen and water vapours
D ) nitrogen and oxygen

5 - The Earth's atmosphere is getting hotter because of:

A ) increasing concentration of CO
B ) increasing concentration of CO2 ✅
C ) increasing concentration of O3
D ) increasing concentration of SO2

6 - Which one of the following is not a greenhouse effect?

A ) increasing atmospheric temperature
B ) increasing food chains ✅
C ) increasing flood risks
D ) increasing sea - level

7 - Buildings are being damaged by acid rain because it attacks:

A ) calcium sulphate
B ) Calcium nitrate
C ) calcium carbonate ✅
D ) Calcium oxalate

8 - Acid rain effects the aquatic life by clogging fish gills because of:

A ) lead metal
B ) chromium metal
C ) mercury metal
D ) aluminium metal ✅

9 - Ozone is beneficial for us as it:

A ) absorbs infrared radiations
B ) absorbs ultraviolet radiations ✅
C ) absorbs chlorofluorocarbons
D ) absorbs air pollutants

10 - Which one of the following is not an air pollutant?

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

11 - Iron and steel structures and damaged by:

A ) Carbon monoxide
B ) sulphur dioxide ✅
C ) methane
D ) carbon dioxide

12 - Effects of ozone depletion are following except the one;

A ) Increases infectious diseases
B ) increases crop production ✅
C ) can cause skin cancer
D ) can cause climatic changes

15 - Global warming is because of:

A ) absorption of infrared radiations emitted by Earth's surface ✅
B ) absorption of infrared radiations coming from the sun.
C ) absorption of ultraviolet radiations coming from the sun.
D ) emission of ultraviolet radiations from the Earth's surface.

16 - Carbon monoxide is harmful to us because:

A ) it paralysis the lungs
B ) it damages lungs tissues
C ) it reduces oxygen carrying ability of haemoglobin ✅
D ) it makes the blood coagulate.

17 - Earth has natural systems:

A ) one
B ) two
C ) three
D ) four ✅

18 - The envelope of different gases around the Earth is Called:

A ) atmosphere ✅
B ) biosphere
C ) lithosphere
D ) hydrosphere

19 - The percentage by volume of nitrogen in dry air is:

A ) 78.09% ✅
B ) 20.94%
C ) 0.93%
D ) 0.03%

21 - Atmospheric region found between 50-85 km from the Earth is:

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

22 - Mesosphere has a temperature range:

A ) 17°C to -58 °C
B ) -58°C to 2°C
C ) 2°C to -93°C ✅
D ) -93°C to 2°C

23 - Which gases are the major constituents of troposphere?

A ) nitrogen and oxygen ✅
B ) Oxygen and hydrogen
C ) CO2 and argon
D ) none of the above

24 - Which gas is responsible for warming the atmosphere?

A ) nitrogen
B ) hydrogen
C ) helium
D ) carbon dioxide ✅

25 - At which region all weathers occur?

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

26 - Almost all air crafts fly in which region?

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