Water Flashcards
1
Q
What percentage of water on earth can be used by humans?
A
less than 1%
2
Q
Why can people not use the majority the water on earth?
A
it is either salt water (mostly) or permanently frozen
3
Q
Why do we need to use water wisely?
A
usable water is a limited resource and there are increasingly more people on earth (i.e. demand for it constantly increasing)
4
Q
List ways to use less water?
(9 points)
A
- teach people about the importance of water
- fix water leaks immediately (incl. taps that drip)
- install water saving devices (taps & toilets)
- do NOT wash dishes with water running continously
- only wash full loads of laundry and dishes
- shower rather than bath
- replace old toilets with new ones that use less water
- sweep rather than hose down driveways and patios
- direct rainwater to lawns
5
Q
List ways to protect the quality of water.
A
- Grow plants on bare areas to preven the soil washing away
- Never pour anything other than water down drains
- Do not litter
- Check cars for oil / leaks & recycle motor oil
- Pick up after your pet.
- Store & dispose of household chemicals properly
- Use fertilisers sparingly & avoid harmful pesticides
- Keep human waste away from water
- Ask the government for better water-protection laws
6
Q
What are our two biggest problems with water?
A
- wastage
- pollution
7
Q
What does it mean to pollute?
A
to dirty with harmful or poisonous materials
