Answer:
Now, it is called a building because the 'ing' in the English language is added to certain verbs to make them nouns. The verb 'built' is suffixed with 'ing' to make the thing a noun- Building.
Explanation:
Pneumonia
is usually caused by a bacterial or viral infection in the <span><span>lung</span> , which
causes the patient to cough up yellow-green mucus.
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<span>Angioplasty uses a balloon tipped catheter into a narrow or blocked blood vessel where the balloon is inflated to open the vessel and improve blood flow.</span>
