The given statement "The axis is the imaginary line that runs through the center of the earth between the North and South Poles" is true.
Step-by-step explanation:
Imaginary line passes from the North Pole to the South Pole through the earth’s centre. It is said that the Earth rotates (orbits) around the axis, that is "tilted" with respect to the Sun.
The position of the axis, especially its tilt towards 23.5 degrees is the reason of the climatic changes and the different types of seasons. Longitudinal lines with values of 0 degree passes from north to south pole vertically.