The correct answer is D) a wide area of dry land located along the southern edge of the Sahara.I'm 100% sure for this answer.
Hi. "Tidal wave" suggests a wave associated with the ebbs and flows related to the relative positions of the earth, moon and sun. These rises and falls relative to mean sea level are periodic and easily predictable. But the enormous wave generated by an earthquake is probably even less easy to predict than an earthquake and of no regular (that is, periodic) recurrence that anyone knows of. But I think "tsunami" is not too bad a name for such earthquake-generated waves as tsunami does not suggest any strong link with the relative positions of the earth, moon and sun.
The focus of an earthquake is the point underground where rocks first begin to move. Seismic waves travel outward from the earthquake's focus.
The agricultural revolution in Britain was very important, if not the most important factor that led to the industrial revolution.
The reason for this is that with the agricultural revolution, the production on the farmlands increased significantly, and that trend was constantly going upwards. That led to a situation where there was much more production than what the country needed, so it had to be traded. But the trade of the crops was still limited, thus something new was needed, something that will enable the manufacturing of the goods, so that they can be preserved better and last longer, so that they can be traded further away. That economic pressure, led to multiple inventions, which resulted in the development of the industry, thus having the start of the industrial revolution.