![](https://cos-cdn.shuashuati.com/pipixue-web/2020-1231-2005-12/ti_inject-812ce.png)
What are the ideal conditions for creating clouds?
A.
The temperature is as low as minus 235 degrees Fahrenheit.
B.
The air is a million times drier than that of Sahara.
C.
Extremely dry air and low enough temperature.
D.
A mild climate and the build-up of carbon dioxide.