It marks the axis from Pole to Pole about which the planet revolves.
The imaginary line through Earth's poles is called the axis. It is an imaginary line that Earth rotates around.
The earth turns.It turns completely around every 24 hours.Everybody on the earth turns along with the earth.When the line from the sun to you goes through the earth, the sun cannot shine on you, and you are in 'night'.When the line from the sun to you doesn't go through the earth, the sun can shine on you, and you are in 'day'.
A line through a circle that does not go through the center of the circle is a secant line. A line through a circle that does go through the center is still a secant line, by the way. Compare this to a line segment that has its two endpoints on the circumference of the circle. That line segment is a cord of the circle. If that cord of the circle passes through the center of the circle, then the cord is a diameter of that circle.
The Latitude is the line
equator
the axis
the Earth's axis
The earth rotates on it's axis, the imaginary line that runs from the north pole to the south pole through the center of the earth.
The earth rotates on it's axis, the imaginary line that runs from the north pole to the south pole through the center of the earth.
On its AXIS. The axis if an imaginary line that strikes through the Earth from North Pole to South Pole through the centre of the Earth.
the equater
The imaginary line that goes from pole to pole through the interior of the Earth is called the Earth's axis. It is an imaginary line around which the Earth rotates, and it is inclined at an angle of approximately 23.5 degrees from the perpendicular to the plane of Earth's orbit around the Sun.