It uses a powerful synthetic pyrithroid that attracts roaches and attacks their central nervous system.

Many clothes are polyester/synthetic that do not readily support mold growth. 

Moreover, if the house smells of too many synthetic fragrances, like candles, air fresheners, or sprays, it may be to cover up problematic odours.Check for leaks under the sinks, basement, windows, and other areas if you notice a moldy odour.

And I'm sure there are more synthetic opioids coming: we've only known about fentanyl since the 1950s and carfentanil since 1974.We're talking about tiny, tiny amounts of the target substance here.

https://www.drugs.com/medical-...In 2020, there were 56,000 overdose deaths due to synthetic opioids like fentanyl.

Also I would like to know if I can use any other synthetic water resistant material as a frame beneath instead of wooden frame.

Also, I added a synthetic turf and retaining wall (around $5,000) in April 2017.

So here's what I saw for editing:On the Kitchen page "Synthetic" is misspelled under the counter top types, the "p" was left out of "backsplash" and I don't know that you need a spot for "Kitchen Windows" if you are already getting a total window count on the first page (same for other rooms like the Bathrooms, Bedrooms and Living Room), but that may be by design.

There are synthetic & rubber underlays for sound treatment as well, but they are very pricey and in our limited experience do not work any better than cork.I am curious about cork under ceramic/porcelain tile.  

Is that real stucco or synthetic??