Answer: A. Large earthquakes offshore of Portugal.
Explanation:
Large earthquakes in coastal areas can cause tsunamis, an example of which being the boxer day tsunami in 2004.
18 States - North Carolina, Ohio, Alabama, Connecticut, New York, Georgia, Kentucky, Maine, Maryland, Massachusetts, Tennessee, New Jersey, New Hampshire, Pennsylvania, South Carolina, Vermont, West Virginia, and Virginia. The Appalachain mountains are found in these states, so it is only logical sediments could be found inside of them.
Pretty sure the answer is b
D) despicable a diversified biological
