Answer:
a piece of land surrounded by water.
Explanation:
Answer: Continental slope
The continental slope is said to be the steepest part of the continental margin, where there is a sudden decrease in slope or it suddenly descends down to the ocean floor and the sea floor begins to level out towards the abyssal plain. Moreover, this portion of the sea floor also marks the end of the continental margin called the continental rise.
Tectonic plates because that is what triggers earthquakes.
I’m not sure exactly what you’re looking for, but the US spent $15m dollars and gained 54% of Mexico’s pre-1836 territory. There’s a nice article on Wikipedia called ‘Mexican Cession’ that seems helpful. Hope this is helpful :)
