GCSE Chemistry OCR 21st Century, C1- Air Quality

?
How did carbon dioxide go from a very high percentage in the early atmosphere, to very little in todays atmosphere?
It dissolved in oceans, and later made sedimentary rocks.
1 of 5
What substance is formed during the polymerisation of ethane?
Polythene
2 of 5
What is ethanol produced from?
Microbial fermentation of sugar
3 of 5
Octane is a...
Hydrocarbon
4 of 5
What substance weathers limestone, damages trees and makes rivers and lakes acidic?
Acid rain
5 of 5

Other cards in this set

Card 2

Front

What substance is formed during the polymerisation of ethane?

Back

Polythene

Card 3

Front

What is ethanol produced from?

Back

Preview of the front of card 3

Card 4

Front

Octane is a...

Back

Preview of the front of card 4

Card 5

Front

What substance weathers limestone, damages trees and makes rivers and lakes acidic?

Back

Preview of the front of card 5

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all The pollutants of combustion resources »