At pH level 6, basic forms of food dies that the fish eats. ... During this time, fish cannot reproduce and the young fish have difficulty staying alive, and the older fish will die of suffocation. At a pH level of 5, the whole fish population will die off. A pH level of 4.0 will cause all life forms in that area of the lake or stream to die off. ... We can keep our thermostats set a 68 F in the winter and 72 F in the summer and make sure our homes are well insulated. ...

• Word Count: 1341
• Approx Pages: 5
• Has Bibliography
• Grade Level: High School

For both summer and winter Arctic sea-ice, the area coverage is declining at present and the ice has thinned significantly over a large area. ... The main concern about permafrost is that when it melts, the large quantity of carbon it contains is sent back to the atmosphere as methane and carbon dioxide, also there is presence of a frozen compound called clathrates beneath the permafrost and it may be destabilized and will ultimately result in the release of methane and carbon dioxide, the melting is an irreversible ecological landslide a vicious circular feedback that is becoming stronger and...

• Word Count: 2460
• Approx Pages: 10
• Has Bibliography
• Grade Level: Undergraduate

During one particularly acid summer storm, rain falling on a lime-green automobile leached away the yellow in the green paint, leaving blue raindrop shaped spots on the car. ... The young have difficulty staying alive, and eventually the older fish will die of suffocation. At pH level 5.0 the whole fish population will die off. At pH level 4.0 all life forms will die. ...

• Word Count: 1344
• Approx Pages: 5
• Has Bibliography
• Grade Level: High School

Heat and drought may cause forests to die and food crops to fail. ... When the flames die down, nothing is left but acres of blackened, lifeless countryside. ... It means turning down the thermostat in your house in the winter and turning it up in the summer. Or better yet, try using fans instead of air conditioning in the summer months. ...

• Word Count: 2008
• Approx Pages: 8
• Has Bibliography
• Grade Level: High School

Heat and drought may cause forests to die and food crops to fail. ... When the flames die down, nothing is left but acres of blackened, lifeless countryside. ... It means turning down the thermostat in your house in the winter and turning it up in the summer. Or better yet, try using fans instead of air conditioning in the summer months. ...

• Word Count: 2008
• Approx Pages: 8
• Has Bibliography
• Grade Level: High School