Why December Has The Longest Days

What is the primary reason a solar day is slightly longer than the Earth's rotational period of 360 degrees?

• The Earth's magnetic field interferes with its rotation.

• The Moon's gravitational pull slows down Earth's rotation.

• The Earth simultaneously orbits the Sun while rotating on its axis.

• Atmospheric drag causes the Earth to rotate slower.

How does Earth's elliptical orbit affect the length of a solar day?

• When Earth is farther from the Sun, solar days are longer.

• When Earth is closer to the Sun, solar days are shorter.

• When Earth is closer to the Sun, it moves faster, requiring more rotation for a solar day.

• The elliptical orbit has no significant effect on solar day length.

Besides Earth's orbital speed, what other factor contributes to variations in the length of a solar day throughout the year?

• The changing phases of the Moon.

• The Earth's axial tilt relative to the Sun.

• Variations in the Sun's energy output.

• The presence of other planets in the solar system.

When do the effects of Earth's elliptical orbit and axial tilt combine to produce the longest solar day of the year?

• During the summer solstice.

• During the spring equinox.

• Around December 22nd.

• During the autumnal equinox.