Weekly exercises

Weekly Exercise for Water Chronicles 10

Name:

1. What are the sources of irrigation water? How can water be delivered from the sources to crops?

2. What is the temporal trend in water withdrawal for irrigation and how has the ratio of surface water to groundwater withdrawal changed over time?

3. What problems can occur with the extensive use of center pivot technology?

4. What type of earth material will be good for earthen embankment dams?

2