... as is nitrogen, in fertilizers. Carbon is an essential element in all living organisms. The carbon cycle is the transferring of carbon dioxide (CO2) into the air or water by plants through photosynthesis (solar energy). A carbon atom makes this journey about once every three years. Carbon can be transferred from plants ... to algae, to shellfish to animals that feed on the shellfish and respired back into the air as CO2. It can also be released into the atmosphere by combustion of fossil fuels. It takes millions of years for carbon to come from sediment of algae ... used in its natural...

• Word Count: 1039
• Approx Pages: 4
• Grade Level: High School

... as is nitrogen, in fertilizers. Carbon is an essential element in all living organisms. The carbon cycle is the transferring of carbon dioxide (CO2) into the air or water by plants through photosynthesis (solar energy). A carbon atom makes this journey about once every three years. Carbon can be transferred from plants ... to algae, to shellfish to animals that feed on the shellfish and respired back into the air as CO2. It can also be released into the atmosphere by combustion of fossil fuels. It takes millions of years for carbon to come from sediment of algae ... used in its natural...

• Word Count: 1044
• Approx Pages: 4
• Grade Level: High School

... way of obtaining solar energy is by two different kinds of artificial collectors. These are called flat plate collectors and concentrating collectors. The former are thin boxes with a see-through cover, which are placed of the top of roofs and facing the sun. These are used for water and ... space heating. Concentrating collectors are more expensive and complicated; therefore, they are more beneficial for uses such as air conditioning and central power generation. The temperatures they can acquire are higher than that of flat plate collectors. Solar energy falls on buildings and ... and ...

• Word Count: 784
• Approx Pages: 3
• Has Bibliography

... the top 1% of taxpayers would get most of the tax breaks. Only a few people can afford to put in $60,000 each year into the tax-sheltered accounts can afford the new tax-free savings account. President Bush also agreed to remove the 2001 income and estate tax cuts after ... over the next 10 years. In 1997, the General Accounting Office gave $7.1 billion in subsidies to Ethanol agribusinesses. And the $710 million budget for research into the hydrogen fuel cells for the "freedom car" which requires energy use from fossil fuels, nuclear or renewable sources (this will not cut energy depend...

• Word Count: 739
• Approx Pages: 3

... a fuel in combustion engines, which create environmental hazards. "After the internal combustion engine consumes the gasoline, it releases carbon monoxide, nitrogen oxides, hydrogen carbons, and carbon dioxide. These chemicals cause air pollution, acid rain, and the buildup of greenhouse gases in the atmosphere. This results in the destruction of our precious ozone layer (Svoboda 1)." In order to prevent further damage, many ... kinetic energy of the car (Mustoe 551)." This would solve pollution problems and revolutionize the automobile industry. How does a fuel cell work? A fuel cell is...

• Word Count: 1224
• Approx Pages: 5
• Has Bibliography