Roal Amunsen was the first.
Answer:
(a) Florida was completely submerged below sea level
Explanation:
- The state of Florida as located on the southernmost part of the North American lands and is bordered by the Gulf of Mexico and in the west ad northwestern Alabama.
- With a total area of about 65,757.70 km square. It now at an elevation of 100 ft. The climate of this place is temperature and somewhat sub humid and some parts are tropical. Thus called the sunshine state.
- Geologically the peninsular was a plateau and a porous land of karst topography and had an undersea extension of caves and sinkholes and springs. The limestone was topped by the sandy soil that was deposited in ancient beaches millions of years ago.
- <u>As the global sea levels rose and fell the climate was largely a peninsular savanna type.</u>
Answer: seafloor spreading and subduction magmatism
Explanation: Continental crust are termed as the crust destroyed by plate tectonic process mostly.Continental crust usually lies above sea level and because of this existence of land life to evolve from marine life possible.
Seafloor spreading is a type of process in which tectonic plate of Earth's lithosphere separate from one another. Subduction is also a process related with continental crust that occurs when tectonic plates collide with each other rather than getting apart.
Explanation:
The mean angle is all the angles added up together then divided by how many angles they were. For example:
I have four angles 44°, 37°, 29° and 67°, what I would do is add them all up together, i.e, 44+37+29+67, which equals to 180. Then I would divide 180 by how many angles they were, so I would do 180÷4 which equals to 45. So the mean angle would be 45°, that's how you find the mean, hope that helps.
