Answer:
Thin and composed of ice crystals.
Explanation:
According to a different source, these are the options that come with this question:
- thin and composed of rain
- heap like and composed of rain
- puffy and composed of ice crystals
- thin and composed of ice crystals
The high-level clouds that occur above 20,000 ft. are known as cirrus clouds. Cirrus clouds are the most common of all the high clouds, They are long, thin, wispy streamers that are composed of ice. Moreover, these clouds are usually very white and they tend to appear when the weather is fair.
