4. Evaluate Look again at the advantages and disadvantages of dam-and-reservoir systems
presented in Figure 10-7. Which advantage
and which disadvantage do you think are most
important? Explain your answers.

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they were destroyed coming out of the civil war but after he war they were booming. if you need an in-depth answer follow up with me  

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true. earthquakes are felt whenever there is a slip around a fault in the rocks below the earth. this reorientation of faults create sesmic waves and is known as earthquake, the severity of which is measured in richter scale. these are more prominent in hilly regions as the rocks usually form faults to balance the pressures on it.