Answer: Ablation is a procedure that's been available now for 10 or 15 years or more, that is to eliminate heart rhythm disorders mostly now in what we call the upper chamber, or the atrium.nswer: Ablation is a procedure that's been available now for 10 or 15 years or more, that is to eliminate heart rhythm disorders mostly now in what we call the upper chamber, or the atrium.
Cumulus clouds look like fluffy tufts of cotton floating in the sky. Sometimes they might take the shape of a dragon, a turtle or some other creature. Cumulonimbus clouds are large, flat clouds that spread across the sky. One end of the cloud might be shaped like an anvil.
The diagram below shows where different types of clouds are located in the sky. Visit the Cloud Gallery to see photos of the different cloud types. The highest clouds in the atmosphere are cirrocumulus, cirrus, and cirrostratus. Cumulonimbus clouds can also grow to be very high. Mid-level clouds include altocumulus and altostratus. The lowest clouds in the atmosphere are stratus, cumulus, and stratocumulus.