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What are the economic drawbacks of using biofuels?
auto.howstuffworks.com/fuel-efficiency/biofuels/economic-drawbacks-of-using-biofuels.htm
What are the economic drawbacks of using biofuels? Read about the downsides of using biofuels at HowStuffWorks.
Most Powerful Countries: 2024 World Rankings
history.howstuffworks.com/world-history/most-powerful-countries-in-the-world.htm
The world's most powerful countries shape global affairs with economic strength, military power, tech, and cultural influence, driving international policy.
Why Was the WWII Battle of Stalingrad So Deadly?
history.howstuffworks.com/historical-events/battle-stalingrad.htm
The Battle of Stalingrad was one of the bloodiest in all of World War II. More Soviet troops died there than did American soldiers in the entire war. What made this battle so deadly?
How Many Countries of South America Can You Name?
history.howstuffworks.com/world-history/countries-of-south-america.htm
From the Amazon Rainforest to the Andes Mountains, the fourth-largest continent is a treasure trove of natural wonders and historical sites. Let's explore the countries of South America and take a look at what makes each one unique.
Can You Name the Countries for These Mostly Green Flags?
play.howstuffworks.com/quiz/can-you-name-the-countries-for-these-mostly-green-flags
The stars and stripes. The maple leaf. The red ensign. The gold and green. Every country has a flag and every flag has a meaning. Do you think you can ID all these countries that have green flags? Run this quiz up the flagpole, and see who salutes!
How to Volunteer for the U.S. Geological Survey
money.howstuffworks.com/economics/volunteer/opportunities/volunteer-us-geological-survey.htm
The U.S. Geological Survey offers opportunities to volunteers interested in natural science. Read about volunteer ideas through the U.S. Geological Survey.
Why are gas prices declining?
money.howstuffworks.com/gas-price-decline.htm
What causes gas prices to drop in the fall of 2006? Learn what economic factors can cause a drop in gas prices.
Who Was the Worst President Ever in U.S. History?
people.howstuffworks.com/worst-president-ever.htm
Every few years, a group of historians and scholars ranks America's presidents. The "winner" of the worst president ever category has remained consistent.
If You Can Name 25/25 of These Countries From Just Three Cities, You're a Geography Genius
There are more than 190 countries in the world, and that's a lot to know! If you've ever had a map hanging on your wall, you probably got the knowledge to ace this. Find out if you're a geography genius by seeing how high you can score!
Grassoline: Can we fuel cars with grass?
auto.howstuffworks.com/fuel-efficiency/alternative-fuels/grassoline.htm
Grassoline for fuel is a concept that is under development in the ongoing search for an alternative to oil. Learn about the concept of grassoline.