Question

why does mercury have extreme temperature differences between day and night? because it is the closest planet to the sun because terrestrial planets are warmer than jovian planets mercury is the fastest moving planet in our solar system without an atmosphere, the heat absorbed during the day cannot be held during the night

Explanation:

The lack of a significant atmosphere on Mercury means there is no mechanism like the greenhouse - effect on Earth to retain heat at night. During the day, it absorbs heat from the Sun, and without an atmosphere to hold that heat, it quickly radiates away at night, leading to extreme temperature differences. The other options do not directly address the day - night temperature difference.

Answer:

Without an atmosphere, the heat absorbed during the day cannot be held during the night