Q: Is a coast often blocked by dams and other human regulatory devices? ¶
A: Yes, and which remove the sediment from the stream by causing it to be deposited inland.
Q: Is a coast the result of erosion of a surrounding cliff? ¶
A: Yes, or bluff.
Q: Is a coast a frontier that nations have typically defended against military invaders? ¶
A: Yes, and smugglers and illegal migrants.
Q: Is a coast one where the land gradually descends into the sea? ¶
Q: Is a coast one where marine action has produced steep declivities known as cliffs? ¶
Q: Are coasts a dynamic environment with constant change? ¶