Greenhouse Gases

Burning Fossil Fuels causes air Pollution. They release gases such as Carbon Monoxide, Carbon Dioxide, Sulphur Dioxide and Nitrogen Oxides. We burn fossil fuels in cars, Power Stations, and our homes and factories to produce Energy. These gases cause problems such as Acid Rain and Global Warming.

Acid Rain

(I)GCSE Topic 4.14 Enhanced Grennhouse effect

-Brought about by Polution: CO2, CH4, Water Vapour
-These gases increase their concentration in the upper atmosphere-Infared would be increasingly emmited back into the earth rather than released.
-Results in an increase in the earths temperature- melting in ice caps - raised sea levels - climates change - winds generated.
-Change in distribution of biomas - vegetation, ecosystem.

(I)GCSE Topic 4.13 Greenhouse Gases

-Human activities contribute to Greenhouse Gases:
-Burning of Fossil Fules = CO2, NO2, SO2 which absords Infared light.
-Farming (animals) digestion of crops = emit ethane gas 9%
-Evaporation of water from water vapour (clouds)
-Refridgeration- solvents and propelents = Chlorine, Carbon, Florine - absorbtion of Ultraviolet Light

(I)GCSE Topic 4.12 Greenhouse Effect

a) UV light from the sun-high energy.
b) 50% of this light is reflected back into deep space.
c) absorbtion in the earths surface-UV light is converted and emitted as Infared.
d) Infared light space-heat
f) greenhouse gases e.g. water vapour, CO2, CH4 ...
g)re-emits infared

(I)GCSE Topic 4.11 Gas Pollution

Pollution of air by sulphur dioxide and carbon monoxide:

-Sulphure Dioxide (gas) is added to the atmosphere by burning fossil fuels in factories and vihicles.
- In the atmosphere Sulphur Dioxide mixes with water to create Sulphuric Acid.
- Acid Rain (from Sulphuric Acid) effects plants and animals-they burn and cannot grow.
-Acid Rain in lakes reduce pH which makes them acidic and this effects the fish by causing a thickening of the mucus that lines the gills and reduces the fishes ablity to take in oxygen from the water, which eventually kills the fish.

-Carbon Monoxide is produced when Fossil fules-Cole burns with insufficient oxygen.
-Carbon Monoxide combines with Haemoglobin and forms the molecule: Carbamenohaemeglobin
 - blocks haemoglobin from carrying oxygen.