What causes clouds to generally hang at a 3,000 foot level?

Clouds form as water vapor condenses into droplets. The temperature of the lower atmosphere decreases with height, most of the time (an exception is often during the night when a temperature inversion can form.) read more

a.cirrostratus clouds are present. b.the clouds overhead are low clouds. c.rain is falling from the clouds overhead. d.the clouds are composed of water droplets. read more

There are low level clouds, medium level clouds and high level clouds. Low level clouds typically has a height less than 6500ft, but cumulonimbus can reach a height of 45000ft, cumulus can reach a height of 25000ft and Nimbostratus a height of 15000ft. But these are all low level clouds. Medium level clouds range from 6500 to 16500-25000ft. read more