C1 Air Quality-CGP Flashcards

(42 cards)

0
Q

When the earth cooled..

A

The earth formed a thin crust

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1
Q

Millions of years ago the earths surface was…

A

Molten and any atmosphere boiled away

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2
Q

Volcanoes gave out lots of gases, including

A

Carbon Dioxide
Water Vapour
Nitrogen

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3
Q

The oceans formed when…

A

Water vapour condensed

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4
Q

When there was lots of CO2 in the atmosphere…

A

Green plants evolved and produced Oxygen by photosynthesis

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5
Q

When plants died the buried under… … ….

And some co2 got locked ⬆ which over years turned into…

A

Layers of rock

Fossil fuels

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6
Q

When there was more oxygen the atmosphere killed of some organisms but allowed more more

A

Complex organisms to evolve

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7
Q

The atmosphere is made ⬆ of four main gasses which are

A

Nitrogen 78%
Oxygen 21%
Argon and other 1%

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8
Q

A pollutant is a chemical that’s harmful because it’s

A

In the wrong place

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9
Q

Particulates are

A

Tiny particles in the air

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10
Q

Human activity is adding

A

Pollutants to the air

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11
Q

The 5 main pollutants are

A
Carbon dioxide
Carbon monoxide
Particulates
Sulfer dioxide
Nitrogen oxides
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12
Q

The 3 main ways in which we are adding pollutants to the atmosphere are

A

Burning fuels
Power stations
Vehicles

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13
Q

Natural ways pollute the earth like…

A

Volcanoes

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14
Q

Pollutants affect us directly and indirectly, for example

A

Directly- death like from breathing difficulties

Indirectly- environment, acid rain kills fish that we eat

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15
Q

Atoms joined together are called

A

Molecules

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16
Q

Most fossil fuels have just 2 atoms that are

A

Hydrogen
Carbon
These also known as HYDROCARBONES

17
Q

Fossil fuels are formed from

A

Dead plants and animals

18
Q

We get fuel from … which is drilled out of the earth.

19
Q

Unlike many other fossil fuels, coal is made ⬆ of

A

Carbon + impurities

No hydrogen

20
Q

⬆ to page 12

21
Q

Why are fossil fuels burnt?

A

Release energy

22
Q

What are the 2 main purposes of fossil fuels

A

Power stations and vehicles

23
Q

When fossil fuels burn with carbon in it produces lots of

A

Pollutants containing carbon stuff obvioustly

24
1 way Carbon dioxide is made is when fossil fuels burn with lots of
Oxygen | Complete combustion
25
Carbon monoxide is made when fossil fuels bunt without much
Oxygen | Incomplete combustion
26
Carbon basses pollutants are
Carbon - monoxide (1 oxygen atom) - dioxide (2 oxygen atoms) - particles (little bits of it)
27
The """""""" of carbon dioxide looks like
O-C-O | CO2
28
What's more harmful to us? Carbon monoxide Carbon Dioxide
Carbon Monoxide | Cause headaches, drowsiness and even kill
29
Carbon particles a) Make by ______ b) Also called ______ c) Makes stuff ______
a) Carbon burning incompletely b) Soot c) Dirty
30
Where does sulfur one from
In fossil fuels | Only small amounts of it though
31
Sulfur dioxide is a pollutant because it causes
Acid rain | Its the the only way it can go
32
Why is acid rain bad? | 4/2
Makes water acidic killing fish Damages statues Kills animals Kills trees
33
Nitrogen turns to a form of nitrogen monoxide when it reacts with... in ....Then after it reacts with more oxygen to form....
Oxygen Hot enough places/car engines Nitrogen Dioxide
34
Nitrogen Monoxide and Nitrogen Dioxide are jointly referred to as? NO - NO2
Nitrogen oxides | NOx
35
What does nitrogen dioxide become?
Acid rain/dilute nitric acid | Similarly to sulfur dioxide
36
The simplistic way to reduce pollution is
To use less electricity
37
Filtering natural gas and fuel oil can reduce the amount of
Sulfur
38
When coal is burnt you can reduce the amount of .... And .... By .... Which involve running an .... Down a flue chimne.
Sulfur dioxide Particulates Wet scrubbing Alkali
39
If everybody used public transport less
Pollutants would be made
40
Biofuels give out.......CO*2.... taken in by plants that make the fuel itself.
The same amount of co2 as they take in | They are carbon neutral
41
Electric cars give out... Emissions
No, however they are produced elsewhere