The four basic ones are:
Cumulus
Stratus
Cirrus
Cumulonimbus
Clouds at 4
cumulonimbus clouds
clouds
Water vapor forms clouds when it condenses in the atmosphere.
It forms clouds.
rain
i think stratosphere
Hail normally forms in cumulonimbus clouds.
Convective clouds, Frontal clouds and Orographic clouds
Lightning forms in clouds.
condensation
Clouds form.