Define Union And Intersection Of Set
Define union and intersection of set
INTERSECTION is a set whose elements are common to both set
What Is The Cause Of Asthma?
What is the cause of asthma? Answer: What is the cause of Asthma? Asthma is a lung condition that causes breathing problems. It is common in kids and teens and could be hereditary. It can be mild or so severe that it gets in the way of day to day life. It all start in the passage way inside your lungs known as bronchi and bronchioles through which the air passes. These passages have an inner covering called the mucous membrane or mucosa surrounded by a layer of smooth muscles. Normally, when someone inhales, air goes in through the nose or mouth , down the windpipe called trachea , and into the airways of the lungs. And the mucus inside the passage ways helps to trap any outer particles like dust or pollen. And when people with asthma are exposed to certain triggers like smoke, dust, pollen, colder climate etc. an asthma attack can occur, making it difficult for them to breathe. And that is because the smooth rings circling the air passages in the lungs tightens and nar
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