Ice Core Lab

1 - How many ice ages have there been in the past 150,000 years?

two

2 - About how cold does it get during an ice age?

 about -15ºF below average.

3 - How long are the ice ages (approximately)? 

 about 20,000 years

4 - How long are the interglacial periods? 

 about 35,000 years

5 - How many big volcanic events have there been in the past 150,000 years?

three.

Acid Rain

1 - What gases are the major cause of acid rain?

 Sulfur dioxide and nitrogen oxides

2 - Where do most of these gases come from?

 Burning fossil fuels.

 3 - Describe a few negative effects of acid rain.

Makes lake water acidic, harms fish and birds,  and makes it hard for trees to absorb water. Their leaves are also effected.

Vampire Power

1.) Describe what "vampire power" or "standby power" is.
Vampire electronics are electronic gadgets that use standby power. Still sucks out power when it's plugged in but not in use.
 2.) List 3 devices (or kinds of devices) that use this kind of power. 
 Televisions, Microwaves, toasters, chargers
3.) List 2 ways you could decrease the use of "vampire power" where you live.
you can unplug electronic devices when they're not in use. 
Buy power switch controlled plugs

Fracking Journal

If someone wanted to frack around my house, personally, I wouldn't be okay with it. This is because it could contaminate my water and kill the wild life around my home. Yes, natural gas is good for transportation and is cleaner for burning, it still, however, spills and ruins the environment. We would still need to use foreign resources for oil, it doesn't decrease our dependence for oil. The benefits do not equal out to the disadvantages and I believe people shouldn't be fracking.

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>.