Font size
WorksheetsAIR and atmosphere
Total questions: 28
Worksheet time: 9mins
What is the Atmosphere?
A layer of gases that surround the earth.This is a wrong answer
The atmosphere is like a blanket that keeps the earth warm.
It is what allows life to live on the earth.This is a wrong answer
All of these are true.This is a correct answer
What gas makes up the majority of the atmosphere?
oxygen
nitrogen
water vapor
carbon dioxide
What layer of the atmosphere is closest to outer space?
mesosphere
exosphere
troposphere
stratosphere
What protects Earth from ultraviolet rays from the sun?
ozone layer
mesosphere
air pressure
troposphere
Where is the Ozone Layer found in our atmosphere?
Troposphere (lower portion)
Stratosphere (upper portion)
A deadly gas that can build up in homes from radioactive Uranium leaking from the ground.
uranium
helium
oxygen
radon
Dust, ash and pollen are examples of this air pollutant...
Lead
Ground-level ozone
Particulate matter
Nitrogen oxides
CFC's cause harm to our
Troposphere
Weather Layer
Ozone Layer
Thermosphere
Which of the following shows the correct approximate composition of gases in clean and dry air?
78% oxygen, 21% nitrogen, 1% noble gases and carbon dioxide
78% nitrogen, 21% oxygen, 1% noble gases and carbon monoxide
78% nitrogen, 21% oxygen, 1% noble gases and carbon dioxide
78% oxygen, 21% noble gases and carbon dioxide, 1% nitrogen
An 80 cm3 sample of air is trapped in a syringe. The air is slowly passed over heated iron in a tube until there is no further decrease in volume.
When cooled to its original temperature, which volume of gas remains?
80 cm3
64 cm3
20 cm3
16 cm3
Select the air pollutants matched with their correct source.
carbon monoxide - incomplete combustion of fuel in motor vehicles
sulfur dioxide - burning of sulfur-containing fuels in power stations
methane - sunlight acting on unburnt hydrocarbons and nitrogen oxides
oxides of nitrogen - combination of nitrogen and oxygen in air at high temperatures in power stations
Select the air pollutants matched with their correct natural source.
carbon monoxide - forest fires
sulfur dioxide - lightning activity
oxides of nitrogen - volcanic activity
methane - bacterial decay of vegetation
Select the air pollutants matched with their correct harmful effects.
carbon monoxide - reacts with haemoglobin in blood and prevents blood from absorbing oxygen
sulfur dioxide - greenhouse gas which contributes to global warming
oxides of nitrogen - reacts with oxygen and water vapour dissolve in rainwater to form acid rain
ozone - irritates people's eyes, chests and throats and causes asthma attack
unburnt hydrocarbon - produce ozone when react with oxides of nitrogen
Why is acid rain harmful to the environment?
Which statements / equations are true of flue gas desulfurisation?
Sulfur dioxide produced in power stations can be treated by calcium carbonate and calcium oxide.
CaCO3 → CaO+CO2
CaSO3 + CO2 → CaCO3 + SO2
CaO + SO2 → CaSO3
Calcium sulfite can be easily oxidised to form calcium sulfate to be dumped.
Select the reaction that does not take place in the catalytic converters.
NO and NO2 → N2
CO2 → CO
unburnt hydrocarbons + O2 → CO2 + H2O
2NO + 2CO → N2 + 2CO2
Arrange the statements in order to explain how the ozone layer is depleted.
A: Ozone layer is destroyed.
B: CFCs released rise into the upper atmosphere.
C: Chlorine atoms react with ozone layer.
D: CFCs are decomposed by sunlight to form chlorine atoms.
D, C, B, A
D, B, C, A
B, D, C, A
B, C, D, A
Describe how the carbon cycle regulates the amount of carbon dioxide in the atmosphere.
Clue: three key processes
Which statements are true of greenhouse gases?
Carbon dioxide and methane are examples of greenhouse gases.
In high concentrations, they trap excessive amount of heat in the atmosphere.
They contribute acid rain.
They contribute to global warming.
Ozone is an example of greenhouse gases.
When you own a car, which fuel will you use to power it?
biofuel
petrol
diesel
electricity
