Which option contradicts the motion of the earth? A. The angle of the sun's rays is constant along the orbit of 30 degrees north on the first of July
B. The angle of the sun's rays on the first of January is perpendicular to the orbit of 5.23 degrees south
C. The rotational speed of the earth changes with the distance of the earth from the sun
The sun shines perpendicular to the zero-degree orbit throughout the year