The correct answer is b. - tsunamis.
Tsunami is a Japanese word meaning harbor wave.
Tsunamis are giant waves caused by earthquakes or volcanic eruptions under the sea. This usually happens deep out in the ocean. The earth movement causes a displacement of water in the form of a large ripple which begins to move inland at tremendous speed.
There is no dramatic increase in height of the wave, but as it moves toward the coast, it builds up to a higher and higher height as the ocean becomes shallower and shallower till when it makes land fall, the wave may be dozens of feet high.
"<span>a. largely agrarian, with slave owners as a minority" would be the best option from the list, but it should be noted that even though slave owners were a slight minority, slavery was still very prominent.</span>
I would say c, but don't quote me on that.
<span>Industrialization made it possible to develop new technologies in warfare like create more advanced guns, planes, ships, bombs, and similar things. Countries were richer so they could invest in militaries, and the machines made everything more precise and better which resulted in a stronger, more developed military overall.</span>
