Search Results | human population
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What's Better to Buy, Organic Eggs or Cage-free Eggs?
recipes.howstuffworks.com/organic-or-cage-free-eggs.htm
Organic eggs or cage-free eggs - which is better for you and the environment? Learn what's better to buy, organic or cage-free eggs in this article.
Can You Recognize All of These Hoofed Animals?
play.howstuffworks.com/quiz/can-you-recognize-all-of-these-hoofed-animals
The world is full of ungulates, those hoofed creatures running around with their clip-cloppy hard-toed feet. How many do you think you can identify? Saddle up and let's see!
If you have HIV, does it mean you have AIDS, too?
health.howstuffworks.com/diseases-conditions/infectious/question709.htm
A friend of mine told me that just because you have HIV doesn't mean you have AIDS. Is this true?
What Exactly Is Mensa? How Smart Do You Have to Be to Join?
people.howstuffworks.com/question661.htm
What exactly is Mensa? How smart do you have to be to join?
Do Fish Sleep? They Have to ... Right?
animals.howstuffworks.com/fish/do-fish-sleep.htm
It's hard to imagine Nemo catching some z's in the Great Barrier Reef. But fish do need rest. Do they sleep like we do?
10 Most Dangerous Countries in the World
people.howstuffworks.com/worlds-most-dangerous-countries-news.htm
The Global Peace Index ranks 172 independent states and territories according to their levels of peacefulness. Those that came in last may - or may not - surprise you.
Does everyone have claustrophobia?
health.howstuffworks.com/mental-health/mental-disorders/claustrophobia.htm
Claustrophobia is the term for fear of enclosed spaces -- it's physical and psychological. Read about claustrophobia and some common claustrophobic symptoms.
Why do small changes in Earth's temperature have a big impact?
science.howstuffworks.com/environmental/green-science/changes-earth-temperature-impact.htm
Though not everyone agrees why the Earth is getting warmer, temperatures are inching up worldwide. A couple of degrees doesn't seem like such a big deal. What difference can a subtle change make?
The Most Venomous Snake in the World and 19 Deadly Others
animals.howstuffworks.com/snakes/deadliest-snake-in-world.htm
Just one bite from any of these venomous snakes could cost you your life. They're some of the deadliest snakes in the world and you don't want to mess with them.
Anyone With the Most Basic Geographic Knowledge Should Get 19/26 on This Quiz
Mountains, rivers, country borders ... How well do you know the globe? This quiz will test your knowledge of basic world geography - start scrolling and see if you can get your bearings!