When the temperature is low, is there more or less water in the atmosphere? Why? Why? Why?

Let me tell you this first: when the ground temperature is high, the air expands and rises when it is heated, and it condenses into rain when it meets cold air. On the contrary, when the ground temperature is low, the air sinks and the weather is drier. Of course, this is only one situation.

Regarding your question, I provide this answer: the water vapor in the atmosphere comes from the evaporation of liquid water in the hydrosphere and is influenced by temperature and humidity at the same time, that is, the higher the temperature, the richer the water resources and the more water content in the atmosphere; On the contrary, the less. So the temperature is low, other conditions remain unchanged, and the air is relatively dry.

Do you understand, friend?