C9 - Chemistry Of The Atmosphere Flashcards

1
Q

What did the early atmosphere contain?

A

Co2, Nitrogen, water (due to increasing volcanic activity).
Co2 was likely dissolved into sediment.
Plants//algae converted CO2 into O2 through photosynthesis.

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2
Q

What is the greenhouse effect?

A

The greenhouse effect warms the earth;
greenhouse gases absorb long wavelength radiation that is reflected on the surface (Water vapour, CO2, C2H4)

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3
Q

What is global warming?

A

Rise in global temperatures. However, the earth’s climate is hard to predict/model. Most predictions have been incorrect.

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4
Q

What is carbon footprint?

A

Measure of how much CO2 is released into the atmosphere as a result of human activity.

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5
Q

How can carbon footprint be reduced?

A

Planting trees.

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6
Q

What does carbon monoxide do in the human body?

A

It binds to haemoglobin in red blood cells, reducing the oxygen they are able to transport.

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7
Q

Why is carbon monoxide known as the ‘silent killer’?

A

It’s odourless and colourless so it is hard to detect.
Over inhalation of CM can be fatal.

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8
Q

What does sulphur dioxide cause?

A

Cause acid rain, which corrodes metals and erodes stone.

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9
Q

What does nitrogen oxide cause?

A

Acid rain, which can cause respiratory//breathing problems.

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10
Q

What can soot cause?

A

Soot, which is released from incomplete combustion, can lead to health problems.

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