-- The low tides would be lower, and the high tides would be higher.
-- The time from a low tide to a high tide, or from a high tide to a low tide,
would average 6hrs 24min, instead of the present 6hrs 12.2min.
(By the way ... the moon revolves around the Earth in 27.32 days.
That "30 days" that you mentioned is close to the complete cycle
of the moon's phases ... 29.53 days ... which the tides also follow.)
A geographic coordinate system uses a three dimensional spherical surface to show locations on earth.
Answer:
6 is probably C and 7 is D
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.
