<span>Now a days there are lots of diseases that can be passed on from one person to another. In other cases, even the diseases are coming to different sources other than from other human. To avoid contacting communicable disease, one should make it a habit to wash hands often. </span>
Answer:
B
Explanation:
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<span>Hi,
What disease makes the air sacs in the lungs less elastic reducing their ability to absorb oxygen ?
</span><span>chronic bronchitis and emphysema (COPD)</span>
D. Ecstasy. MDMA is the pure form of ecstasy.
C. the qualifications of the author