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How to Determine Your Skin Tone
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Want to know how to determine your skin tone? Visit HowStuffWorks to learn how to determine your skin tone.
Daily Oily Skin Care Regimens
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Daily oily skin care regimens can help you improve your skin. Visit HowStuffWorks to find daily oily skin care regimens.
10 Advancements in Environmental Engineering
science.howstuffworks.com/engineering/civil/10-advancements-environmental-engineering.htm
Environmental engineering existed long before it had a name. It began at the dawn of civilization when we started changing our surroundings to meet our needs.
How to Disinfect a Toothbrush
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There are several ways to disinfect a toothbrush. See how to disinfect a toothbrush and find out if it is worth the effort.
Top 10 Green Roofing Options
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Top 10 green roofing options are explained in this article. Visit HowStuffWorks.com to learn more about 10 green roofing options.
What Makes Glass Transparent?
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What makes glass transparent? Learn how liquid and gas molecules determine whether you can see straight through things.
Do you know the signs of skin cancer?
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Do you know the signs of skin cancer or think that skin cancer isn't a problem? See the signs of skin cancer to protect yourself and get informed.
How Radiation Works
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Radiation is a loaded word. Believe it or not, not all radiation is bad for your health. Learn which radiation is deadly and which isn't deadly.
Lichen Planus Overview
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Lichen planus can be a bothersome condition. Visit HowStuffWorks to learn all about lichen planus.
The Ultimate 3-D Printing Quiz
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Regular printers are pretty handy, but their up-and-coming cousins, 3-D printers, add a whole new dimension to the printing process. Literally! How much do you know about the fascinating field of 3-D printing? Take this quiz and find out!