1.5 - Case Study : The Amazon Rainforest

Question 1

Amazon location

Answer 1

Brazil and Peru

Question 2

The Amazon is responsible for …..% - …….% of the world’s photosynthesis

Answer 2

30%-50%

Question 3

The Amazon has lost ………% of it’s forets in the past 50 years

Answer 3

17%

Question 4

Cattle is responsible for ………….% of the deforestation in the Amazon

Answer 4

80%

Question 5

The Amazon produces ……% of it’s own rainfall

Answer 5

33%

Question 6

4 reasons for the Amazon to be stressed

Answer 6

Drought
High temperatures
Logging
Agriculture

Question 7

Name 5 things that are impacted by deforestation of the Amazon

Answer 7

Temperature
Rainfall
Thunderstorms
Surface flow
Fires

Question 8

Why has the temperature changed in the Amazon?

Answer 8

Less evapotranspiration = less moisture in air = less cloud cover = less solar radiation being reflected = warmer

Question 9

Why has the rainfall changed in the Amazon?

Answer 9

Particles from fires = increase density if airborne aerosols = smaller rain droplets in clouds which are too small to precipitate

Question 10

Why has the thunderstorm frequency changed in the Amazon?

Answer 10

Vegetation breezes over cleared land = air above crops warm faster = create localised low pressure as rises = draw moist air from surrounding areas = storms

Question 11

Why has the surface flow been impacted in the Amazon?

Answer 11

Increase in river discharge

Question 12

Why has the fire frequency in the Amazon?

Answer 12

Selective logging damages nearby trees = open gaps in the forest = more exposed to sunlight and winds = dry quickly so fires