... trying to find a way to extract this energy, rather how to split the water molecules into hydrogen and oxygen. Hydrogen can be used to power cars, rail engines, airplanes, to produce electricity and heat. But, although the technical breakthrough in 19th and 20th century brought hydrogen into experimental use in ... as a fuel for combustion engines looks very positive, there are still many problems to solve, but hydrogen would be probably the fuel of our cars in the future. One of the important benefits of hydrogen is that it can be used directly in an internal combustion engine very simil...

• Word Count: 2745
• Approx Pages: 11
• Has Bibliography
• Grade Level: Undergraduate

... a car, and the rapid multiplication of sources. Smog in American cities is expected to increase again as the number of cars and miles driven continues to rise. Meanwhile, developing countries are building up their own industries, and their citizens are buying cars as soon as they can afford them. Ominous changes continue in the global atmosphere. New efforts to control air pollution ... a car, and the rapid multiplication of sources. Smog in American cities is expected to increase again as the number of cars and miles driven continues to rise. Meanwhile, developing countries are buildin...

• Word Count: 6167
• Approx Pages: 25
• Has Bibliography
• Grade Level: Undergraduate

... depletion. CFCs are transporters of the damaging chlorine molecule. In fact, CFCs are not the only ozone depletion chemical. Bromine halocarbons, nitrous oxides from fertilizers, and exhaust emissions from cars and high-speed aircraft attack the ozone in a much less significant manner. The CFC molecule separates after absorbing radiant energy from the sun. The chlorine atom is released after the ... use only EPA certified car technicians to ensure that car refrigerants are recovered and recycled. Careful evaluation of cooling systems can also reduce ozone-depleting substance from escapin...

• Word Count: 3086
• Approx Pages: 12
• Has Bibliography

... , commercial and residential heating, smelters, diesel engines and marine and rail transport, which creates sulfuric acid in rain. Nitrogen dioxide will also react with the rain, caused largely by transportation (cars, trucks, planes, etc.) and electric utilities, producing nitric acid. There is a certain degree of naturally occurring acidity in rain water. This acid is from reaction with alkaline chemicals, found in ... ...

• Word Count: 3648
• Approx Pages: 15

... ton of steel manufactured. A typical metropolitan area discharges a volume of wastewater equal to about 60 to 80 percent of its total daily requirements! The rest is being used for washing cars, watering lawns, and for manufacturing processes such as food canning and bottling. Infiltration: This occurs when sewer lines are placed below the water table or when rainfall goes down through ... ...

• Word Count: 2505
• Approx Pages: 10
• Grade Level: High School

... , commercial and residential heating, smelters, diesel engines and marine and rail transport, which creates sulfuric acid in rain. Nitrogen dioxide will also react with the rain, caused largely by transportation (cars, trucks, planes, etc.) and electric utilities, producing nitric acid. There is a certain degree of naturally occurring acidity in rain water. This acid is from reaction with alkaline chemicals, found in ... ...

• Word Count: 3648
• Approx Pages: 15

... . However, motor vehicles present a significant and growing air pollution threat. There is now one vehicle for every nine people on the planet - a total of 600 million vehicles. Since 1986, new cars in Australia have had catalytic converters in their exhaust systems. These converters reduce the amounts of oxides of nitrogen, carbon monoxide and unburnt petrol escaping into the air. Use of ... ...

• Word Count: 2950
• Approx Pages: 12