What are the four hemispheres and what important lines of latitude and longitude separates them?

It helps keep the continents in order and helps pilots and boaters keep an accurate path.... :)

The lines of latitude and longitude are important because we need them to describe exactly where a point is on Earth.

They r both imaginary lines

The half of the Earth that includes all points whose latitudes are northof the equator is called the northern Hemisphere. The half of the Earth that includes all points whose latitudes are southof...