Air Quality C1 Flashcards
What was the earths atmosphere probably formed by?
Volcanic activity.
How are pollutants released?
By natural processes such as volcanos and human activity such as burning fuels.
What two things does carbon dioxide get trapped in?
In sedimentary rocks and fossil fuels.
What does photosynthesis remove and release?
Removes carbon dioxide
Releases oxygen.
What did water vapour first form?
It first formed the oceans.
What are the elements made from?
Elements are made from atoms.
Name two air pollutants?
Carbon monoxide, sulphur dioxide, nitrogen dioxide and carbon.
What do chemical reactions involve?
Arranging atoms into new substances which have different properties.
What is coal?
Coal is carbon.
How is nitrogen oxide formed?
Nitrogen and oxygen from the air.
What makes the most pollution.
Power stations and transport.
What happens when suffer dioxide dissolves in water.
It forms acid rain.
How can we reduce pollution?
Not using cars, cleaner fuels and having cars regularly serviced.
How do power stations reduce pollution.
By flue gas desulfurisation.
What is biofuels classed as?
Carbon neutral.
