1. How long ago (years) did the agricultural revolution start?

1.  1000 2.  10000 3.  100 4.  10 5.  1

Your answer:

2. For how many years has the term "civil engineer" been in use?

1.  100 2.  5 3.  1000 4.  25 5.  250

Your answer:

3. What caused the ozone hole to develop in the late 1900's?

1.  presence of CFC's 2.  excessive UV radiation 3.  too much acid rain 4.  global warming 5.  reduced photosynthesis

Your answer:

4. What is the process directly responsible for the presence of sodium chloride and calcium carbonate in surface waters?

1.  excessive precipitation 2.  Act of God 3.  waste of the biosphere 4.  Humans put it there 5.  industrialization

Your answer:

5. What value approximates the average salinity of the sea?

1.  3,500 ppm 2.  120,000 ppm 3.  35 ppm 4.  35,000 ppm 5.  350 ppm

Your answer:

6. What value approximates the average global terrestrial precipitation?

1.  400 mm 2.  1,600 mm 3.  800 mm 4.  200 mm 5.  3,200 mm

Your answer:

7. What is the main reason why humans tend to concentrate on the dry side of the climatic spectrum?

1.  to avoid bugs 2.  to avoid cold 3.  to look for more sun 4.  to look for ocean 5.  to avoid water

Your answer:

8. What percentage of California's water use originates in groundwater?

1.  10 2.  20 3.  90 4.  50 5.  1

Your answer:

9. What is the role of cowboys in society?

1.  control exposure to sun 2.  control overgrazing 3.  control erosion 4.  report animal losses 5.  fix fences

Your answer:

10. What is sustainable development?

1.  development that can be sustained over time 2.  development that can be paid for 3.  development that does not affect poor people 4.  development that uses fossil fuels 5.  development that does not affect seniors

Your answer: