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Can You Get More Than 11 Right on This Tree Knowledge Quiz?
play.howstuffworks.com/quiz/can-you-get-more-right-this-tree-knowledge-quiz
Trees aren't just idle objects in our world. They're living, breathing creatures that add tremendous value to human life, from shade, to lumber, to simple beauty and a lot more. What do you know about trees?
How Permaculture Works
home.howstuffworks.com/lawn-garden/professional-landscaping/permaculture.htm
Permaculture is a holistic approach to agriculture. Learn about permaculture and why the movement provides a more sustainable way of living.
Will the U.S. be a desert in 50 years?
science.howstuffworks.com/nature/climate-weather/atmospheric/us-desert-50-years.htm
Will the U.S. be a desert in 50 years? Learn about the chances of the U.S. becoming a desert in the next 50 years.
What is fertilizer and why do plants need it?
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What is fertilizer and why do plants need it? What do the three numbers on most bags of fertilizer mean?
Can You Identify the Tree From Its Bark?
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From busy cities to lush jungles, from tall mountains to blistering deserts, trees can be found everywhere. Get ready to put your knowledge of trees to the ultimate test with this tree bark quiz!
What Is Deforestation?
science.howstuffworks.com/environmental/green-science/deforestation.htm
Deforestation, or the removal of forests, contributes to global warming. Learn how deforestation harms our plants and animals -- even to extinction.
The Basic Astronomy quiz
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The night sky has fascinated humans throughout history. Even if you're not a science buff in general, we're willing to bet you know a thing or two about astronomy yourself. Find out just how much with our quiz!
How Lawn Dethatching Works
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Are you wondering how lawn dethatching works? Check out this article and learn all about lawn care and how lawn dethatching works.
Can California Save Today's Rain for Future Droughts?
science.howstuffworks.com/nature/climate-weather/atmospheric/save-rain-future-droughts.htm
California has experienced unprecedented rain lately, but the state is still in a drought. So why can't the rain falling now be saved for later?
Will we soon be extinct?
science.howstuffworks.com/life/evolution/mass-extinction.htm
A mass extinction on Earth is long overdue, according to population ecologists. Find out what Earth's fossil record may be telling us about our future.