Ch 11.2

Question 1

Greenhouse gases:
(1), (2), (3), (4) and (5)
[Largest content -> Least content]

Answer 1

Carbon dioxide
Chlorofluorocarbons
Methane
Ozone
Nitrous oxide

Question 2

Greenhouse effect is a (1) process.

Answer 2

natural

Question 3

Put in order
A   GHGs absorb some energy
B   Energy emitted to the atmosphere
C   Earth is kept warm
D   Sun's energy reaches earth's surface
E   Re-radiation
F   Earth's surface absorbs some energy

Answer 3

D F B A E C

Question 4

Sun emits (1) while earth’s surface emits (2).

Answer 4

short-wave radiation

long-wave radiation

Question 5

Power generation

Burning (1) (e.g. (2) and (3)) and use of (4) emits (5) and (6).

Answer 5

fossil fuels
coal
oil
cars / transport
carbon dioxide
nitrous oxide

Question 6

Industrial activities

Making (1) and (2) emits (3) and (4).

Answer 6

metals
cement
carbon dioxide
nitrous oxide

Question 7

Industrial activities
Production of (1) and (2) release (3).

Answer 7

refrigerants
foams
chloroflurocarbons

Question 8

Industrial activities
Production of (1) releases (2).

Answer 8

nylon

nitrous oxide

Question 9

Farming activities

1) used in farming releases (2

Answer 9

Chemical fertilisers

nitrous oxide

Question 10

Farming activities

1) and (2) release (3

Answer 10

Wet rice cultivation
cattle rearing
methane

Question 11

Burning trees

(1) release (2) and reduce the amount of that to (3) GHGs.

Answer 11

Deforestation
carbon dioxide
absorb

Question 12

Waste treatment

1) release (2) and (3

Answer 12

Incinerators
carbon dioxide
nitrous oxide

Question 13

Waste treatment

1) of (2) in landfills release (3

Answer 13

Decomposition
organic waste
methane