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How Much Air Pollution Comes From Cars?
auto.howstuffworks.com/air-pollution-from-cars.htm
You see it every time smoke billows from your car's exhaust pipe. There's no denying that vehicles are major contributors to air pollution.
Why is there fluoride-free toothpaste?
health.howstuffworks.com/wellness/oral-care/products/fluoride-free-toothpaste.htm
Fluoride-free toothpaste is an option, but why would you want to use it? Find out why there is fluoride-free toothpaste.
Does Chicken Soup Really Help When You're Sick?
recipes.howstuffworks.com/chicken-soup-when-sick.htm
Preparing a bowl of chicken soup for a loved one when they're sick has been a common practice throughout the world for centuries. But does it help you get well?
Diet Coke vs. Coke Zero: Is There Actually a Difference?
recipes.howstuffworks.com/diet-coke-vs-coke-zero.htm
Which gets your vote in the great Diet Coke vs. Coke Zero debate? The labels say the differences are slight, but fans will say the diet sodas are worlds apart.
The Armor of God: A Metaphorical Guide to Christian Faith
people.howstuffworks.com/armor-of-god.htm
The Christian faith — like many religions — is known for having a range of interpretations, especially when it comes to the Bible. Today we'll be looking at a passage from Ephesians, from which we get the term "armor of god."
Warm Colors Range From Sunny Yellows to Luscious Reds
entertainment.howstuffworks.com/arts/artwork/warm-colors.htm
Warm colors — including reds, oranges and yellows — evoke feelings of energy, passion and warmth. Warm and cool colors play off each other, with warm tones taking center stage when you want to create a lively, inviting atmosphere.
'Friday the 13th' Series Quiz
play.howstuffworks.com/quiz/friday-13th-series-quiz
Was Jason a victim or a villain? See how much do you know about the "Friday the 13th" movie franchise by taking this quiz.
Top 5 Sustainable Fishing Practices
animals.howstuffworks.com/animal-facts/top-5-sustainable-fishing-practices.htm
Even though recreational fishermen enjoy catching fish, they're also deeply concerned about protecting them. That may seem like a paradox, but when you stop to think about, it only makes sense.
Ridiculous History: A Nation Sacrifices Its Sausage to Fight a War
They may not seem stealthy now, but in WWI, zeppelins were airborne attackers. Learn what strange ingredient zeppelins needed at HowStuffWorks Now.
Study Finds No Link Between Inactivity and Weight Gain
A surprising February 2017 study didn't find a link between sedentary lifestyle and weight gain. Learn more at HowStuffWorks.