C1 Atmosphere Flashcards

1
Q

How much oxygen is in the present day atmosphere?

A

About 20%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

How much nitrogen is in the present day atmosphere?

A

About 78%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

How much argon is in the present day atmosphere?

A

About 1%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Give the other gases present in the present day atmosphere.

A

Water vapour, carbon dioxide and noble gases

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What released gases into the atmosphere for the first billion years?

A

Volcanoes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What was made from the condensation of water vapour?

A

Oceans

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What gases were probably in the early atmosphere?

A

Carbon dioxide, water vapour, methane and ammonia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What gas was not probably present in the early atmosphere?

A

Oxygen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

The ‘primordial soup’ theory is one theory of how life was formed millions of years ago, what was needed in this theory?

A

Hydrocarbons, ammonia and lightning

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What experiment tried to recreate this theory?

A

Miller-Urey experiment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What produced the oxygen present in today’s atmosphere?

A

Plants

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

How was the carbon dioxide from the early atmosphere locked up?

A

In sedimentary rocks as carbonates and fossils fuels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Oceans act as a reservoir for carbon dioxide, what effect will increased carbon dioxide have?

A

Make the oceans more acidic and effect the marine environment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

How is carbon dioxide in the atmosphere increased?

A

Burning fossil fuels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What absorbs carbon dioxide from the atmosphere?

A

Plants for photosynthesis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

How can the gases in air be separated?

A

Fractional distillation

17
Q

Why can gases in air be separated?

A

Different boiling points

18
Q

What is nitrogen used for?

A

Inert gas in packaging and making fertilisers

19
Q

What is oxygen used for?

A

Rockets fuel and medical use

20
Q

What is argon used for?

A

Light bulbs and arc welding