Ch 2.1 water supply and demand Flashcards
1
Q
Irrigation
A
The process of supplying water to areas of land to make them grow crops
2
Q
Conservation
A
The practice of using less of something so it won’t be used up
3
Q
Desalination
A
Process of obtaining freshwater from saltwater
4
Q
What are the 3 ways to conserve water?
A
- Reduce water use
- Recycle water
- Reusing water
5
Q
How to desalinate water?
A
- Distillation
- Freezing the water
- Pump water at high pressure through a very fine filter to filter out the salt
6
Q
What is distillation?
A
Boil water until it evaporates, then condense the water vapor to produce liquid fresh water
7
Q
Distillation is similar to water cycle because…
A
It needs a heat source (to boil water), water is evaporated, and water is condensed
8
Q
Distillation is different from the water cycle because…
A
It does not use the sun to evaporate water
9
Q
Drip irritation uses less water because…
A
Less water lost to evaporation
