Fossil Fuels Flashcards

1
Q

What are the 3 main fossil fuels

A

Oil, gas, coal

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2
Q

How is oil and natural gas formed

A

Plants and animals died and fell to the bottom of the sea
The remains were covered by mud
The mud sediment was covered by more sediment so merged together to form rock as temperature and pressure increased.
The remains were chemically altered to from oil and gas
Oil moves up the spaces in the rock and can be obtains by drilling into the rock

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3
Q

How was coal formed

A

Plants died in swamps
The remains were buried in mud which stopped the remains form rotting
In the absence of oxygen, compressed heat and turned mud to rock and fossils to coal

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4
Q

Why are fossil fuels so important to our society

A

Energy source
Used everyday

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5
Q

Are fossil fuels renewable

A

No they are a non renewable source of energy

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6
Q

What happens when you burn fossil fuels

A

Co2 - burning fossil fuels - enhanced greenhouse affect
Sulphur dioxide - burning fossil fuels - acid rain
Nitrogen oxides - burning fossil fuels - acid rain and smog
Carbon monoxide - cigarettes, fossil fuels - poisonous to living things
Hydrocarbons - burning fossil fuels - acid rain and smog
Smoke - burning fuels - damages lungs
Lead compounds - car exhausts - damages human nervous system

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7
Q

What are alternative fuels

A

Solar power, nuclear power, wind power, hydrogen and water

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8
Q

What are the advantages and disadvantages of hydrogen as a fuel

A

Advantage
It produces only water

Disadvantage
Production from the electrosis of water

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