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Science
Science(Fuels)
Question | Answer |
---|---|
What is a fuel? | A substance that burns in oxygen to produce heat |
Name the products present in fire | Fuel, heat and oxygen |
How are fossil fuels formed? | From the remains of organisms that lived millions of years ago |
What is a hydrocarbon? | Compounds made up of hydrogen and carbon |
What is the greenhouse effect? | When heat from the sun gets trapped in the carbon dioxide and other gasses. The temperature of the earth rises . Levels of carbon dioxide are rising due to the burning of fossil fuels |
How is acid rain formed? | When carbon dioxide dissolves in the atmosphere to form acid witch has a pH of around 5.5 |
What is nitric acid? | When car exhaust exit oxides of nitrogen. When they dissolve in water vapour in the atmosphere. |
What type of stone does acid rain attack? | Limestone |
What other things does acid rain attack | Tress and animals |