Answer:
All of the lines of longitude to the west of the prime meridian until 180 degrees are in the western hemisphere. Ninety degrees west is a line that passes through North America, including Lake Superior and the Yucatan Peninsula.
The cause is the fact that they have orbits of different size.
For two objects in orbit around the same central body, the one in the
larger orbit will take longer for each complete revolution.
And if two objects are in the same-size orbit, their periods of revolution
are identical, even if the objects have different size and mass.
(Example: All TV satellites are in the same orbit. Some are big and heavy,
some are smaller and lighter, but all of them revolve around the Earth in
exactly 24 hours.)
Yes it’s hard to find because it’s rare also some can be found in South Africa
They were first developed in British. I know because in my school we are learning about blueprints.<span />