PV Gap

Miriam Said:

Earth Science - PLEASE HELP?

We Answered:

Hey, this is YOUR take-home test, not mine. Do your own work!

"Look at your Work File, Part I"

YOUR work file, not mine.

"Review the information in Part II of your Work File."

One. Two. Three....

Your. Work. File.

Try Google. It works pretty well.

Anita Said:

Does UV light degrade plastic? If you purify water in a PVC plastic tube, what will happen to the plastic?

We Answered:

Yes, UV degrades plastic, and PVC is one of the worst of the clear plastics in this regard. Google "UV plastic degradation" and "plastic UV resistance"for a wealth of information. You also have to consider the UV transparency of the plastic, so the UV can get into the water and do some good. Looking at your website, I'd suggest trying to interest a good plastics engineer in your cause.