Water Availability (Grade 11 NSC Matric Life Sciences): Flashcards
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People lacking clean water by 2050
People lacking clean water by 2050
Almost 2 billion people
Global water use: 1900 vs 2025 (billion m³)
Global water use: 1900 vs 2025 (billion m³)
500 billion to 5,000 billion
Hydroelectricity definition
Hydroelectricity definition
Electricity generated by power of water
Aquifer definition
Aquifer definition
Underground water-bearing, sponge-like rock layer
Eutrophication definition
Eutrophication definition
Excessive nutrients causing algae/plant overgrowth in water
Wetlands: two water functions
Wetlands: two water functions
Natural sponges (store) & filters (clean water)
Alien plants' water impact
Alien plants' water impact
Extremely water-hungry, deplete groundwater
% urban water lost via leaking pipes
% urban water lost via leaking pipes
Approximately 40%
SA free basic water allocation/month
SA free basic water allocation/month
6 kilolitres for families of five
SA's climate classification
SA's climate classification
Mostly arid or semi-arid