Find out what you know and don't know about preparing your home for winter. Although Americans generate about 210 million tons of trash each year, they keep about 30 percent of the garbage out of landfills and incinerators through recycling. Few animals in the wild stir human emotions, positive and negative, in quite the same way as the wolf. Shrewd predators, doting parents and playful pranksters, these majestic animals symbolize the true wildness of nature to many people. But to others, wolves represent a threat to human livelihood.
Proper nutrition is a mainstay of a healthy lifestyle.
Paying attention to what you put in your mouth will not only keep you from gaining weight, good eating habits can also reduce the risk of many chronic diseases, including cancer, diabetes, stroke, osteoporosis and heart disease. The power of water has been used over the last two millennia to help grind grain, irrigate fields, drive sawmills, and, in the last century or so, generate electricity. While electricity created through hydropower is cheap, clean and renewable, blocking entire rivers for the sake of electricity has its environmental costs. National Parks quiz From A to Z, Arches to Zion, America's national parks range from vast to small, from focal points of history to sites of extraordinary natural beauty. Basic genetics quiz One of the greatest areas of scientific discovery in recent years may not be in outerspace or the deep sea, but lies instead within the uncharted terrain of the human body.