The best answer is C.
Mercator projection is a type of map projection invented and introduced by Gerardus Mercator in the year 1569. The meridians are equally spaced, parallel vertical lines and the parallels of latitude are parallel horizontal lines spaced farther apart as their distance from the equator increases.
This projection is widely used for navigation charts because any straight line on a Mercator- projection map is a line of constant true bearing that enables a navigator to plot a straight-line course.
It is often described as a cylindrical projection but it must be derived mathematically.
Carbon in the ocean originates from the atmosphere. This statement is True. In fact, there exists Oceanic carbon cycle. Carbon dioxide is absorbed by the ocean's surface from the atmosphere. It is then converted into a dissolved inorganic carbon. Then it is followed by series of steps following the oceanic carbon cycle.
The correct answer is D. ocean floor mapping and earthquake tracking
Tracking earthquakes is helpful because it shows where it came from and what caused it, as well as how it affected the environment, while ocean floor mapping is useful because it shows how the bottom of the sea changed over time which happens due to tectonic activity.
China
china is indeed a rising economic giant. The main reason why China has been doing well in latin America is simply because they do not have additional intrests beyond business. USA democratic dream is seen as a form of bullying by of these goernnments whose record for human rights is also below par.
