Question 6 The change in seasons on the earth occurs because (a) the distance between the earth and the sun is not constant. (b) the axis of rotation of the earth is parallel to the plane of its orbit. (c) the axis of rotation of the earth is perpendicular to the plane of its orbit. (d) the axis of rotation of the earth is tilted with respect to the plane of its orbit.
What angle is made by the axis of the Earth with its orbital plane?