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Railroad Expansion
history.howstuffworks.com/american-history/railroad-expansion.htm
The railroad expansion of the middle and late 1800s changed America forever. Read more about the westward expansion of railroads.
How Weather Works
science.howstuffworks.com/nature/climate-weather/atmospheric/weather.htm
Weather is the state of the atmosphere, rather than something that only affects your area. Read more about weather and the complex system behind it.
10 Wacky Forms of Alternative Energy
science.howstuffworks.com/environmental/green-science/five-forms-alternative-energy.htm
Wacky forms of alternative energy include using human energy as power and bugs that make fuel. Learn about the wacky forms of alternative energy.
Assess Your Garden Conditions
home.howstuffworks.com/gardening/garden-design/assess-your-garden-conditions.htm
All gardens need the right amount of light, good soil, and enough water to grow well. Learn how to assess your garden conditions at HowStuffWorks.
How Ozone Pollution Works
science.howstuffworks.com/environmental/green-science/ozone-pollution.htm
We want the ozone layer, but we don't want ozone pollution... Good in the atmosphere but bad on the ground? Find out about ozone pollution, how it affects you and what you can do about it.
How Aquaculture Works
animals.howstuffworks.com/animal-facts/aquaculture.htm
Aquaculture provides food and replenishes other scarce resources. Learn how aquaculture works and how aquaculture industry supplies the goods we use.
How Ecofeminism Works
science.howstuffworks.com/environmental/green-science/ecofeminism.htm
Ecofeminism is a social movement that combines elements of feminism with ecology. Learn about ecofeminism and famous ecofeminists.
Ultimate Guide to the Latium Wine Region
recipes.howstuffworks.com/food-facts/latium-wine-region.htm
The Latium wine region is among Italy's best. Learn all about the Latium wine region at HowStuffWorks.
Are zoos good or bad for animals?
animals.howstuffworks.com/animal-facts/zoos-good-or-bad.htm
Are zoos good or bad? You might have asked this while visiting your local wildlife hangout. Learn why zoos are good or bad, depending on perspective.
How the EPA Works
people.howstuffworks.com/epa.htm
The EPA was established in order to protect human health and the environment. Learn more about the EPA and some of the duties the EPA performs.