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GGH1502 LEARNING UNIT 12 & 13 MCQ'S Q&A'S
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- University Of South Africa (Unisa)
GGH1502 LEARNING UNIT 12 & 13 MCQ'S Q&A'S
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GGH_1502_ MCQ_Learning Unit 12_Soil Erosion1 Agriculture and construction are ….
(1) not associated with desertification
(2) beneficial for sustainable agriculture
(3) the most widespread and effective human drivers of soil loss
(4) not associated with deforestation
2 Which one of the following is not an example of a soil conservation practice?
(1) Terracing
(2) Planting windbreaks
(3) Zero-tillage
(4) Herbicide spraying
, 3 A sufficient vegetative cover on soil is ….
(1) the cardinal rule for erosion control
(2) not a characteristic of sustainable agriculture
(3) responsible for soil degradation
(4) not important for commercial farming
4 Which one of the following is a consequence of soil compaction?
(1) Increased soil salinity
(2) Increased rock weathering
(3) Decreased germination of seedlings
(4) Decreased soil salinity
5 The erosivity of an erosion agent such as water is determined by....
(1) land use patterns
(2) its depth as well as the speed at which it flows
(3) the type of soil
(4) the type of vegetation
Learning Unit 13: Biodiversity Loss
1 Genetic, species and ecosystem diversities refers to....
(1) agriculture
(2) non-renewable resources
(3) biodiversity
(4) tropical rainforests
2 CITES restrict the….
(1) burning of coal
(2) dumping of waste in the ocean
(3) international trade in endangered species
(4) introduction of alien species
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