Question

which description refers to cirrus clouds?
are fluffy
are wispy
produce snow
form at low altitudes

Explanation:

Cirrus clouds are high - altitude clouds. They are thin and wispy in appearance. Fluffy clouds are more characteristic of cumulus clouds. Clouds that produce snow are usually stratus or nimbostratus (for continuous snow) or cumulonimbus (for more intense, short - lived snowfall in some cases). Clouds that form at low altitudes are not cirrus clouds.

Answer:

are wispy