What is the fastest rotation speed of the earth?

Option d

According to Kepler's second law of planetary motion, the revolution speed of the earth is related to the distance between the sun and the earth. The angular velocity and linear velocity of the earth's revolution are not fixed values, but change with the distance between the sun and the earth. When the earth passes the perihelion, its revolution speed is very fast. Every year, the earth passes the perihelion at the beginning of June, 65438, and the perihelion at the beginning of July. Therefore, from the beginning of June 65438 to the beginning of July of that year, the distance between the earth and the sun gradually increased, and the revolution speed of the earth gradually slowed down. From the beginning of July to the beginning of 65438+ 10 of the following year, the distance between the earth and the sun gradually narrowed and the revolution speed of the earth gradually accelerated.