water in SA Flashcards
who uses water in SA and what %
Agriculture 59%
municipal/domestic 23%
industrial 18%
what shortages will their be if their is no water
health
food supply
country economy
name reasons why we are facing a water crisis
- SA is a dry country with 68% receiving less than 500 ml rain
- irrigation uses a lot water
- the population keeps growing rain doesnt increase
- most dams shallow lots of evaporation
- rivers polluted farmers use groundwater to irrigate
- not enough dams to provide water
what did farmers use to do
they use to make rivers to irrigate their crops
why cant farmer use that method any more
because of pollution
what is a wetland
a wetland is land mostly covered by water
permanatly/seasonally
plants adapted to soil covered by water
what role does wetlands play in the environment
- helps with purification
- flood control
- shoreline stability
- wetlands store our water for dry periods
- helps control erosion
- shelter for fish to breed
- homes for animals/plants
- food for livestock
- location for recreation
- plants that can be used for houses and craft
explain Responsible use of water resources
AGRICULTURE
make sure that water used for irrigation is not polluted with chemicals and poison
INDUSTRIAL
industry is a huge source of water pollution produces chemicals extreme harmful to people and environment. many industries use freshwater carry waste from factories into rivers lakes and oceans
name 6 dangerous household products
- household cleaners
- paints
- lawn/ garden care
- auto products
- pool chemicals
- health/beauty aids
what is Green products
green products are safer to the enviroment
