Draw the longitude and latitude lines of the earth simulation,
Meridian is the line from the South Pole to the North Pole.
Latitude is a circle perpendicular to the meridian, and the circle bisecting the earth is called the equator. That is, mid-latitude.
The equator is the longest circumferential line in the trajectory of each point on the earth's surface with the earth's rotation, which is about 40,700 kilometers long. If the earth is regarded as an absolute sphere, the equator is equal to the north and south poles, which is a great circle. It divides the earth into two hemispheres, the northern hemisphere in the north and the southern hemisphere in the south. This is the baseline for dividing latitude, and the latitude of the equator is 0.
==================================================================
Hello, dear! ````(^__^)````
I'm happy to answer your question. I wish you academic progress, good health, family harmony and happiness every day! You can ask questions if you don't understand!
If you have any other questions, please send them separately or click to ask me for help. It's not easy to answer, please understand.
If you agree with my answer, please click "Accept as Satisfied Answer" below or click "Comment" in the upper right corner of the client. Thank you!
Your praise is my motivation! ! Your adoption will also bring you wealth value. Wish you all the best.
==================================================================