John and Pat's occupation best explains the difference between their skin pigmentation. Since Pat works as a lifeguard, she is more exposed to the sun, which tans her skin. John, on the other hand, works in the theater, where he isn't exposed to sunlight that much, so he is much lighter than his twin, Pat.
Based on the symptoms, the most likely cause of the problem is formaldehyde used in the building materials.
<h3>What is formaldehyde?</h3>
Formaldehyde is a chemical substance which is used as. preservative of wood and building materials.
It us also present in binders and adhesives.
Exposure to formaldehyde produces adverse effects such as;
- watery eyes
- burning sensations in the eyes, nose, and throat
- nausea and
- skin irritation, etc.
Therefore, based on the symptoms, the most likely cause of the problem is formaldehyde used in the building materials.
Learn more about formaldehyde at: brainly.com/question/14798580
One disadvantage<span> to both </span>silverfish and army ants<span> is the fact that both are very hard to get rid of when they are in your home.</span>
