Answer to Question 1
As cumulus clouds grow, they shade the ground from the sun, which cuts off surface heating and upward convection. Without the continual supply of rising air, the cloud begins to erode as its droplets evaporate. As the cloud dissipates, surface heating begins again and regenerates another thermal, which becomes a new cumulus.
Answer to Question 2
We could expect to find status, cirrostratus, altostratus, or nimbostratus clouds to form in a stable atmosphere. Since air in a stable atmosphere strongly resists upward vertical motion, these clouds will tend to spread out horizontally if forced to rise. If clouds form in this rising air, they will also spread horizontally in relatively thin layers and usually have flat tops and bases.
The Crab Nebula, remnants of a supernova that was first observed around 1050 AD
The first dark spot observed on Uranus. Image obtained by the HST ACS in 2006.
CMS-1500 form showing linkage of CPT and diagnosis codes.
How prefixes and suffixes can be combined with a word root to form many medical terms.
How to visualize division in the Odds form of Bayes's Theorem?
Ferns disperse by releasing spores that form on the underside of leaves.