If you're a land surveyor, an astronaut, a geologist, an archaeologist, a sailor or sea captain, an
airline pilot, a miner, a farmer, a guy who builds roads, a city planner, or somebody stranded at
sea and calling for rescue, you have to be able to tell other people where a certain point on
earth is located.
For many points, you can tell them it's a certain distance and direction from the bank, the river,
the church, the fence, or the sleeping black dog. But there aren't always such handy, permanent
marks available nearby. If the point you have to describe is covered with snow, or in a dessert, or
out at sea, you need another way to describe it. That's what latitude and longitude are for.
it's o latitde
Longitude lines go vertically and latitude lines go horizontally.
The lines of latitude and longitude are important because we need them to describe exactly where a point is on Earth.
The most important lines of longitude and latitude are the equator, the prime meridian, tropic of Cancer, tropic of Capricorn and the international dateline.
Latitude and Longitude are used to point to exactly where you want to be
They are important for tracking and mapping points and places.
The Prime Meridian The International Date Line
meridians or lines of longitude
"Lines" of constant longitude are "meridians".
Lines of longitude, or meridians.
So you can find precise locations on the Earth's surface.
Parallel lines, by definition, cannot meet. The lines of longitude meet at the Poles.