Question

explain the common phenomenon​

Answer 1

Answer:

Bacteria. The most common cause of bacterial pneumonia in the U.S. is Streptococcus pneumoniae. This type of pneumonia can occur on its own or after you've had a cold or the flu. It may affect one part (lobe) of the lung, a condition called lobar pneumonia.

Answer 2

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the phenomenon which occurs frequently is called common phenomenon