Sun Movement In Southern Hemisphere Earth And Space Science Questions?

Earth and Space Science Questions? - sun movement in southern hemisphere

Prevailing winds in the northern hemisphere appear to be far to the right, while the prevailing winds in the Southern Hemisphere seems to be shifted to the left. This is called the Coriolis effect. Which movement of the earth is responsible for the Coriolis effect?
With the revolution of the earth around the sun (orbit)
B, the inclination of 23 degrees of the earth on its axis
C, rotation of the earth around its axis (rotation)
D, the entire movement of the Earth in the solar system in the galaxy

From a human perspective to explain why it is important to try to preserve the beaches (which protect against erosion). Give two reasons - and the other on the economic environment - and support your arguments with statements.