The angle which the earth's axis makes with the plane of the earth's orbit is
a. 23½°
b. 60°
c. 66½°
d. 90°
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Solution
The correct answer is option (a).
Explanation: The Earth's axis is an imaginary line joining the North Pole and the South Pole. This axis is tilted at an angle of 23½° with respect to the plane of the Earth's orbit. This tilt is also known as the inclination of the Earth's axis.