Exam (elaborations)
GGH1502 LEARNING UNIT Q&A
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GGH1502 LEARNING UNIT 1 -13 MULTIPLE CHOICE Q&A
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Learing unit 1: physical environment1 Which ecosystem has the greatest net primary productivity (billion tons/C) per year?
(1) Open ocean
(2) Swamp and marsh
(3) Upwelling zones
(4) Tropical rain forest
2 Which proportion of the earth is underlain by permafrost?
(1) 50 per cent
(2) 20 per cent
(3) 5 per cent
(4) 2 per cent
3 Which statement about biomes is false?
(1) Hyper-arid desert supports very little plant life.
(2) Steppe, prairie, pampa and veldt are all regional names for tundra.
(3) Much of the boreal forest is underlain by acid soils.
(4) Herds of grazing mammals are typical of savanna landscapes.
4
Most of the carbon is found in the … .
(1) atmosphere
(2) biosphere
(3) hydrosphere
(4 lithosphere
5 Planet Earth is … million years old.
(1) 460
(2) 4.6
(3) 46
(4) 4 600
39 With the earth as a system, with what is the hydrosphere concerned?
(1) Air
(2) Water
(3) Vegetation
(4) Rocks
,40 Which one is NOT an example of a biome?
(1) Temperate grassland
(2) Forest-grassland
(3) Tropical rainforest
(4) Tundra
With respect to the earth as a system, the lithosphere is concerned with … .
(1) air
(2) water
(3) vegetation
(4) rocks
Taiga is a term applied to the … .
(1) boreal forest
(2) tropical rainforest
(3) tropical savanna
(4) steppe grassland
1 The ozone layer occurs in the ... .
(1) hydrosphere
(2) troposphere
(3 mesosphere
(4) stratosphere
2 The biomes which is protected to the greatest extent?
(1) the tundra
(2) mangroves
(3) the tropical rainforests
(4) river systems
4 Which statement is true? The percentage permafrost on the Earth is … .
(1) 99
(2) 0
(3) 5
(4) 20
, 5 Which of the following statements about biomes is false?
(1) Arid areas supports very little plant life
(2) Mammals are typical of savanna landscapes
(3) Much of the boreal forest is underlain by acid soils
(4) Fynbos is a regional name for temperate grasslands
6 Carbon is mainly found in the ... .
(1) lithosphere
(2) biosphere
(3) hydrosphere
(4) atmosphere
7 The Earth is more or less … million years old.
(1) 460
(2) 4.6
(3) 4600
(4) 46
8 Which statement is false?
(1) There is change over time in a cyclical system.
(2) Reversing changes represent thresholds being passed.
(3) Abrupt changes are non-typical of non-linear systems.
(4) Episodic changes occur when an ecosystem has a high resilience
9 With respect to the earth as a system, the atmosphere is concerned with … .
(1) air
(2) water
(3) vegetation
(4) rocks
10 Which of the following is an example of a biome?
(1) Temperate grassland
(2) Forest-grassland
(3) Tundra rainforest
(4) Boreal forest
, 11 Taiga is a term applied to the ... .
(1) Steppe grassland
(2) Tropical rainforest
(3) Tropical savanna
(4) Boreal forest
12 With respect to the earth as a system,
the biosphere is concerned with … .
(1) air
(2) water
(3) vegetation
(4) rocks
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