C) Western expansion spread the U.S population over a wider area.
Water erosion is the main cause which is the loss of topsoil due to water.
<span>When the strength of the rock exceeded it suddenly breaks causing an earthquake </span>
Answer:
a. Problem 10a: dam 10b: hummocky debris apron; and Problem 10c: slide scar
Explanation:
- The Dam is located in north Italy. It is located in the valley of the Vajont river. There were some problems associated with the dam and reservoir as the canyon was steep and had undercut the banks of the river.
I think D, because it talks about prompting more people to migrate.
