Composition of the atmosphere

Question 1

Nitrogen

Answer 1

78%

Question 2

Oxygen

Answer 2

21%

Question 3

Carbon Dioxide

Answer 3

0.038%

Question 4

Rare gases

Answer 4

1%

Question 5

Methane

Answer 5

0.00017%

Question 6

Ozone

Answer 6

0.0000007%

Question 7

Water vapour

Answer 7

Up to 4%

Variable

Question 8

Used in proteins

Answer 8

Nitrogen

Question 9

Aerobic respiration

Answer 9

Oxygen

Question 10

Photosynthesis

Answer 10

Carbon Dioxide

Question 11

Source of carbon for some chemoautotrophs

Answer 11

Methane

Question 12

Absorbs UV light

Answer 12

Ozone

Question 13

Dynamic equilibrium

Answer 13

2 processes which balance each other out

Question 14

Photosynthesis and respiration

Answer 14

Dynamic equilibrium

Question 15

Troposphere

Answer 15

10KM

20 degrees celcius down to -50 degrees celcius with increased altitude

Question 16

Stratosphere

Answer 16

40KM

-50 degrees celcius up to 0 degrees celcius with increased altitude

Question 17

Mesosphere

Answer 17

30KM

0 degrees cecius down to -90 degrees celcius with increased altitude

Question 18

Thermosphere

Answer 18

Increased temperature with increased altitude

Question 19

Earths energy budget

Answer 19

Incoming solar radiation
Some is absorbed, some is reflected
Heat is reradiated
Some is reabsorbed, some is absorbed by greenhouse gases, some is released to space