How can ocean floor features be measured and mapped using current acoustical technology? How can ocean floor maps be used in the commercial, military, and/or private sector? There are various instruments in today's society that would allow for better mapping of the sea floor. Sonar is till the best way how ever, to map the sea floor. It has come a long way since it was originally created and can give more accurate information on what the terrain is like underwater. We are also at the point that we can have robots do much of the work that we as humans would be incapable of doing. They can go to further depths and for longer periods than we can. Accurate ocean floor maps benefit everybody, not just particular groups like oceanographers. For example, if the military had a better idea at what the sea floor was like around the world, the use of submarines could be used more adequately. In the private sector such as research, and other scientific business, it opens a variety of different opportunities. It allows for deep water research that previously could not have been done. For example, we could take core samples out of an unexplored area and learn more about the earth that way.

I learned a lot more on what Pangaea was really like as well as how it could really be true due to similar formations throughout the continents. Plate Tectonics are pretty crazy, knowing that they have the ability to move continents is almost scary because all it would take is another instance like Pangaea and we would all be in trouble. I believe that the theory of sea floor spreading is the most accurate in terms of what really happened to cause the continents to shift. I also believe that all of the theories are linked together and cumulatively as a whole. It seems to me that having magma come up through the earth and harden causing the plates to spread it very believable. I believe that scientists of different studies share information either through various publishing's in a science journal or through a common info. sharing thing. I believe that it is almost irrefutable that the continents as we know them today were all at on point, one large land mass. The evidence that supports it is far beyond that which states that it didn't happen. The various theories on how it happened is a different story. They are all fairly believable and seem to all have happened. I don't think that any of the theories could have occured without the occurance of the others.