78% Nitrogen, 21% Oxygen, 0.9% Argon, 0.1% Other gases
1 of 10
Where did oxygen in the atmosphere come from?
Photosynthesis: 6CO2 + 6H2O -> C6H12O6 + O2
2 of 10
How was carbon dioxide removed from the atmosphere?
Dissolved in oceans either as soluble or insoluble compounds. Or used in photosynthesis
3 of 10
What is a greenhouse gas?
A gas that absorbs infrared radiation given off by the Earth, but does not absorb the sun's radiation
4 of 10
List the effects of climate change
Sea level rise, storms, rainfall changes, water stress, changes in the behaviour of wildlife, ability for some regions to produce food
5 of 10
What is a carbon footprint?
The amount of carbon dioxide and other greenhouse gasese given out over the full life cycle of a product/sevice/event
6 of 10
List ways we can reduce carbon footprint
Increase use of alternative energy resources, conserve energy, carbon capture and storage, carbon off-setting, carbon taxes/licences, carbon neutral fuels
7 of 10
What are the products of the combustion of a) hydrogen, b) methane, c) ethanol, d) carbon disulfide, e) ethanethiol (C2H6S)
a) H2O, b) CO2/CO/C and H2O, c) CO2/CO/C and H2O, d) CO2/CO/C and SO2, e) CO2/CO/C and H2O and SO2
8 of 10
Describe the problems with carbon monoxide and how we can reduce them
It is toxic (combines with haemoglobin and reduces blood's ability to carry oxygen). It is also colourless and odourless so can be hard to detect. We can ensure there is a good supply of oxygen when fuel is burned
9 of 10
Describe the problems with sulfur dioxide and how we can reduce them
It causes acid rain, damaging plants and stonework. It also causes respiratory problems in humans. Remove it before it reaches the atmosphere
10 of 10
Other cards in this set
Card 2
Front
Where did oxygen in the atmosphere come from?
Back
Photosynthesis: 6CO2 + 6H2O -> C6H12O6 + O2
Card 3
Front
How was carbon dioxide removed from the atmosphere?
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