C13.5 Atmospheric pollutants Flashcards

1
Q

What do all fossil fuels contain?

A

➢ Some sulfur

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2
Q

How is Sulfur dioxide made?

A

➢ When oxygen reacts with sulfur

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3
Q

Why is Sulfur dioxide harmful?

A

➢ It can cause acid rain which damages trees and can even kill animals and plants

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4
Q

How can sulfur impurities be removed from fuel in a coal-powered station?

A

➢ By reacting it with calcium hydroxide

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5
Q

How is carbon monoxide made?

A

When there is not enough oxygen inside an engine, the carbon turns into CO

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6
Q

Why is CO a problem?

A

➢ It is colourless and odourless

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7
Q

What happens when CO gets inside the body?

A

➢ Your red blood cells pick up carbon monoxide and carry it around in your blood instead of oxygen

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8
Q

What will a victim of carbon monoxide experience?

A

➢ Starved of oxygen, lose consciousness

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9
Q

How are oxides of nitrogen formed?

A

➢ When inside an engine the temperatures are high and the unreactive nitrogen gas reacts with oxygen

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