Sea floor spreading adds more crust to the ocean floor and at the same time older strips of rock move outward from either side of the ridge.
<u>ANSWER:</u>
The statement "the extreme pressure and freezing temperatures of the deep ocean make it dangerous to send humans to the greatest ocean depths" best explains why scientists depend on submersibles to study ocean features .
<u>EXPLANATION:</u>
- The oceans are so vast and deep that humans cannot withstand the pressure in depths.
- Submersibles are developed in such a manner that they can travel to the deepest parts of the ocean and study ocean life.
- Submersibles are vehicles that have the capability to carry humans as well to the deep ocean floors or these can be controlled in an automatic manner.
- The submersibles are provided with tools and technologies that can record ocean floor features and make their study possible.
The geography of the United States impacts the possible regions people settle in.
Areas that tend to be flat (or small amounts of small hills) tend to be the most population areas because it is easier to build houses, apartments, etc etc. However there is very few places people have settled where National Parks and Mountains are located because it is unstable and extremely difficult to make a house in that region.
