Final answer:
If it is noon in Mexico and the Earth completes a 180-degree rotation, it results in a time change of 12 hours, making it midnight in Mexico.
Step-by-step explanation:
If it is noon in Mexico and the Earth rotates 180°, it would be midnight in Mexico. As the Earth rotates around its axis, at any moment, one line of longitude — the noon meridian — faces the Sun, which means it is noon along that entire line.
If the Earth rotates 180° from this position, the line that was experiencing noon will now be directly opposite the Sun, indicating midnight. This rotation corresponds to a time lapse of 12 hours, given that the Earth rotates 360° in 24 hours, making each 15° of rotation equivalent to 1 hour.
Therefore, if Mexico is at noon and the Earth rotates 180°, it will experience a time change of 12 hours, making it midnight (Option D).