Answer:
The correct answer is:
C) high heat capacity
Water has a high heat capacity, which means it can absorb and retain a large amount of heat energy without experiencing a significant change in temperature. This property helps regulate Earth's temperature and prevents rapid temperature changes between day and night. The oceans, in particular, play a crucial role in storing and releasing heat, contributing to the moderation of temperature on Earth. The other properties mentioned (excellent solvent and less dense as a solid) are unrelated to the specific question about the temperature changes on the moon.