Answer:
A vacuum breaker is an attachment commonly placed on a bibcock valve or toilet or urinal flush valve, that prevents water from being siphoned backward into the public drinking water system. This prevents contamination should the public drinking water system's pressure drop.
Explanation:
<span>In 1998, the united states total expenditure on smoking-related health issues was $37.5 billion.
-false (</span><span>it is more)</span>
The line of immune defense that was broken was the skin. It might not look helpful but it's a very important part of the body.
Answer:It's not easy to identify patients with communicable diseases.
Explanation:
Strict practice of standard precautions would forestall the transfer of infections from patient to patient through health care workers.
Answer:
1: It's strange how fast I've become nearsighted.
2: We have just occupied Vienna; a far-sighted man could have foreseen the possibility some considerable time ago.
3: Airy, the astronomer, corrected his own astigmatism by means of a cylindrical lens.
4: She wanted to learn more about the vertical adjustments that need to be made in many strabismus cases.
5: He was aware of the danger of accidentally causing amblyopia of the better eye by treating children below the age of six.
Explanation:
