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6. runoff is -

  • does not occur
  • slow due to dry soils
  • rapid due to high rainfall, intensive rainfall events and well-drained soils
  • slow, rocks are permeable

7. forest trees store _ tonnes of carbon collectively

  • 80 billion
  • 200 billion
  • 100 billion
  • 35 billion

8. what is the npp per meter a year?

  • 2500 grams
  • 3000 grams
  • 2000 grams
  • 1500 grams

9. when rainforest is converted to grassland, by what % will runoff be increased

  • 30%
  • 20%
  • 27%
  • 25%

10. what is not a project/scheme occurring?

  • greenpeace
  • parica project rondonia
  • REDD - reducing emissions from deforestation and degradation

11. what is a factor which did not contribute to the flooding?

  • eroded soils
  • temperature
  • deforestation reducing water storage, decreased interception
  • impermeable rock basin

12. how many km of rainforest has been deforested between 1970 and 2013

  • 17,500
  • 18,000
  • 17,000
  • 16,000

13. how many tonnes of carbon a year does the amazon rainforest store

  • 2.4 billion
  • 2.4 million
  • 240 billion
  • 2.4

14. what % of precipitation is intercepted?

  • 10%
  • 20%
  • 30%
  • 40%

15. how much carbon does the amazon release into the atmosphere a year?

  • 1 billion tonnes
  • 2.4 billion tonnes
  • 1.7 billion tonnes
  • 2 billion tonnes

16. amazon regional protected areas now cover how much of the rainforest?

  • 40%, 10x size of spain
  • 44%, 20x size of belgium
  • 50%, 20x size of france

17. how much is biomass annually?

  • between 300-600 tonnes
  • between 3000-6000 tonnes
  • between 400-700 tonnes
  • between 4000-7000 tonnes

18. continued deforestation will result in what % decline of regional rainfall?

  • 20%
  • 25%
  • 30%
  • 15%

19. geology of the amazon basin consists of ...

  • impermeable crystalline rocks
  • sandstone
  • clay
  • limestore

20. grasslands store less carbon that rainforest does. grass stores _ tonnes and soya _ tonnes

  • 162, 27
  • 12, 14
  • 16.2, 2.7
  • 120, 140