... doesn't mean being strong. It means being able to a) compete for resources (like light, space, and nutrients); b) avoid predation (by both mammals, such as deer and porcupines, and by insects); and c) resist the impacts of disease and severe weather. Being taller gives a plant an obvious advantage in the competition for light. But that advantage comes at a cost. Very tall plants (like trees) need ... to be strong enough to withstand the tremendous forces from both summer winds and winter snow and ice, forces from ... he/science push the chronology further into the past. Climatic change...

• Word Count: 2774
• Approx Pages: 11
• Grade Level: High School

... in the Greenhouse effect process. The first is, sunlight radiates from the sun, through space, to the Earth's atmosphere. The second is, sunlight enters the atmosphere and hits the Earth. Some of that sunlight turns into heat energy in the form of infrared light. Surrounding air and land, which in turn makes the heat warm, absorbs the heat. Third, the greenhouse gases trap infrared rays that is remitted into the atmosphere. Finally, the gas then absorbs the light and ... CO2 levels is hindered by a couple of obstacles. The destruction of much of Earth's forest and the depletion of the O...

• Word Count: 1749
• Approx Pages: 7
• Has Bibliography
• Grade Level: High School

... impacts that may result" (Burnett). Not only will global warming have a large impact on humans, but also on wildlife and plant life as well. Many animals will seize to exist in the future. "Many animals are adapted to their natural surroundings, but if there is a change, they could be greatly harmed. Due to wetland disappearances, seal levels rise, and many animals that ... 500 tons of carbon dioxide annually." An example would be California's wind power plants offset more than 2.5 billion pounds of carbon dioxide in 1990, which would have taken a forest 90 million to 175 million trees ...

• Word Count: 3357
• Approx Pages: 13
• Grade Level: High School