C1 OCR

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  • Created by: xfirereg
  • Created on: 01-05-16 19:17
Where did all the CO2 come from during Earth's early atmosphere?
Lots of Volcanoes erupted CO2 and other gasses
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What three main gasses is the current atmosphere made out of?
Nitrogen: 78% Oxygen: 21% Argon and other gases: 1%
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Name one result of pollution which causes direct harm and another which indirectly harms humans
Direct Result: Carbon monoxide (Reduces the amount of oxygen that the blood can carry) Indirect Result: Sulphur dioxide (Acid rain)
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What is a hydrocarbon?
A compound of Carbon and Hydrogen (the majority of fuels that we use contain this)
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Name the main element that makes up coal?
Carbon
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When a hydrocarbon fuel burns, with what substance in the air do the hydrogen and carbon atoms combine?
The hydrogen atoms in the fuel combines with oxygen atoms from the air to make hydrogen oxide
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When hydrocarbons burn in plenty of oxygen, the atoms involved rearrange themselves into carbon dioxide and what else?
Water
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What removes carbon dioxide from the atmosphere?
Plants by Photosynthesis
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What atoms make up carbon monoxide? + under what condition is it produced?
CO + Carbon monoxide is produced if there is not enough oxygen available when fuels burn
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Describe briefly how the pollutant sulfur dioxide is produced
When power stations and vehicle engines burn, small amounts of sulfur dioxide are produced
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How does sulfur dioxide leave the atmosphere?
Acid Rain
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Effects of acid rain on on the environment
lakes become acidic killing plants and animals
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Describe how nitrogen dioxide is produced when fossil fuels are burnt
Fossil fuels burn at high temperatures which causes nitrogen in the air reacts with oxygen in the air which produces NO + NO2
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Formula of Nitrogen monoxide and nitrogen dioxide
NO NO2
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What effect do nitrogen oxides have on the environment?
Nitrogen oxides - similar to sulfur dioxide - Acid rain
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What do Catalytic converters do?
Fitted on cars - These convert harmful nitrogen monoxide into harmless nitrogen and oxygen
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Other cards in this set

Card 2

Front

What three main gasses is the current atmosphere made out of?

Back

Nitrogen: 78% Oxygen: 21% Argon and other gases: 1%

Card 3

Front

Name one result of pollution which causes direct harm and another which indirectly harms humans

Back

Preview of the front of card 3

Card 4

Front

What is a hydrocarbon?

Back

Preview of the front of card 4

Card 5

Front

Name the main element that makes up coal?

Back

Preview of the front of card 5
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