Environmental Problems in South Africa (Grade 11 NSC Matric Economics): Flashcards
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Define sustainable development
Define sustainable development
Meeting current needs without harming future generations
What is climate change?
What is climate change?
Long-term shifts in global temperatures & weather patterns
Define biodiversity
Define biodiversity
Variety of different plant & animal species in an environment
What is over-exploitation?
What is over-exploitation?
Using natural resources faster than they can replenish
Define land degradation
Define land degradation
Deterioration of land quality, making it less productive
How do trees prevent soil erosion?
How do trees prevent soil erosion?
Tree roots hold soil in place during heavy rains
What is overgrazing?
What is overgrazing?
Livestock eating plants faster than they can grow back
Define urban sprawl
Define urban sprawl
Cities expanding rapidly, destroying natural habitats
Main causes of air pollution in SA
Main causes of air pollution in SA
Motor vehicles & factories
Sources of water pollution
Sources of water pollution
Factory/farm waste, fertilisers & pesticides