C1: Air Quality

Question	Answer
Percentages of different elements in the air?	Nitrogen=78%, Oxygen=21%, Argon=1% and Carbon Dioxide=0.04%
How thick is the atmosphere?	Around 15km thick
What are 'particulate's?	Small solids of smoke and ash, released during human combustion that stay suspended in air
Describe the conditions and key elements of 'Early Earth'?	Extremely hot atmosphere, consisting mainly of carbon dioxide and water vapour
Where did most of the carbon dioxide from Early Earth go?	It dissolved into the oceans as the water vapour condensed and formed sedimentary rock
What's the name for chemicals that are harmful towards the atmosphere?	'Pollutants'
Name four pollutants?	Carbon Dioxide, Sulfur Dioxide, Nitrogen Dioxide and Carbon Monoxide
Exhaust emissions from a car can be made less harmful by using a?	Catalytic converter
In a reaction when chemicals join with oxygen, it is called?	Oxidation
What is methane also known as?	Natural Gas
What is 'complete combustion'?	When carbon and oxygen are equally arranged to form carbon dioxide
Catalytic converters do what to nitrogen monoxide?	Split the molecule to form nitrogen and oxygen. This is called 'reduction'
What pollutant is removed in 'wet scrubbing'?	Sulfur Dioxide

Resource summary

	Created by Meghna Patel about 9 years ago