Fossil Fuel questions.

1.) Fossil fuels are fossilized stuff. But what kind of stuff? What is fossilized to create coal, and what is fossilized to create petroleum (crude oil) and natural gas?

 Dead stuff. Coal is made from fossilized carbon. Natural gas is made from dead organisms. And so is crude oil, it's made from dead animals and plants.

2.) Which three countries in the world use the most coal? List them in order. 

 China, USA, India, Germany, Russia

3.) Which three countries in the world have the largest coal reserves? (unmined coal) List them in order.

 America, USSR, China.

Seawall

Seawall

A Seawall is a big structure that extends into the ocean from the shore. The Seawall is usually made out of either rock or concrete. They're made to prevent the shore line to wash away. 

Some down falls to a seawall is that they are expansive to build, take a while to build, and doesn't look very good on the beaches. 

" STRUCTUREmag - Structural Engineering Magazine, Tradeshow: Sea Wall Systems." STRUCTUREmag - Structural Engineering Magazine, Tradeshow: . N.p., n.d. Web. 10 Jan. 2013. <http://www.structuremag.org/article.aspx?articleid=1098>. 

Erosion Prevention

Strip-Cropping

Strip Cropping is when you grow cultivated crops like cotton or corn, and sod-forming crops like alfalfa and hay, in alternating strips that follow the outline of the land. People do this to minimize erosion.

 

• "Strip cropping - Definition and More from the Free Merriam-Webster Dictionary." Dictionary and Thesaurus - Merriam-Webster Online. N.p., n.d. Web. 2 Jan. 2013. <http://www.merriam-webster.com/dictionary/strip%20cropping>.
• "strip-cropping - definition of strip-cropping by the Free Online Dictionary, Thesaurus and Encyclopedia.." Dictionary, Encyclopedia and Thesaurus - The Free Dictionary. N.p., n.d. Web. 2 Jan. 2013. <http://www.thefreedictionary.com/strip-cropping>.