Answer:
The correct answer is D. The Earth's tilt is responsible for the uneven heating between the Poles and the equator on any given day.
Step-by-step explanation:
The Earth currently has an axial variation of 23.45 ° and is decreasing slightly. The result of obliquity is that there are seasons on Earth: the greater the slope, the greater the difference between summer and winter.
The slope is not constant but varies with a period of approximately 41,000 years. The last maximum was 10,700 years ago and amounted to 24.4 °, the next minimum will fall over 9,800 years and come out at around 22.6 °. Over the past 5 million years, the angle has fluctuated between approximately 24.5 ° and 22.0 °.
The northern hemisphere has a summer between March 21 and September 21 and a winter between September 21 and March 21, for the southern hemisphere it is the other way around. As the inclination decreases, the highest point on June 21 changes from the sun from 23.5 ° north latitude to a parallel closer to the equator. The current highest point of the sun is the Cancer Circle. At a maximum obliquity of 24.4 °, the sun comes 1 ° closer to the poles.
Throughout the year, the earth faces the same direction, the axis of the Earth always points to the North Star. The direction of the Earth's axis changes over a period of 26,000 years, this is called precession.