... of ozone and water vapor are negligible. Hence the temperature is lower than that of the troposphere or stratosphere. With increasing distance from Earth's surface the chemical composition of air becomes strongly dependent on altitude and the atmosphere becomes enriched with lighter gases. At very high altitudes, the residual gases begin to stratify according to molecular mass, because of ... reduction is caused by particles produced by chemical conversion of acidic gases and certain hydrocarbons. Acid rain Pure rain-water is slightly acidic, primarily because of dissolved carbon dioxi...

• Word Count: 2950
• Approx Pages: 12

... oxidizes and forms a sulfate ion. It becomes sulfuric acid as it joins with hydrogen atoms in the air and falls down to earth. Oxidation occurs most in clouds, especially in heavily polluted air, where other compounds such as ammonia and ozone help to catalyze the reaction, increasing the amount of ... form of acid rain, but deduce from many experiments it is a main factor in forest destruction. Deciduous trees are like air filters, and screen particles that pass through the air around them. These particles collect on the leaves of the tree, and studies have shown that when these particl...

• Word Count: 3648
• Approx Pages: 15

... oxidizes and forms a sulfate ion. It becomes sulfuric acid as it joins with hydrogen atoms in the air and falls down to earth. Oxidation occurs most in clouds, especially in heavily polluted air, where other compounds such as ammonia and ozone help to catalyze the reaction, increasing the amount of ... form of acid rain, but deduce from many experiments it is a main factor in forest destruction. Deciduous trees are like air filters, and screen particles that pass through the air around them. These particles collect on the leaves of the tree, and studies have shown that when these particl...

• Word Count: 3648
• Approx Pages: 15

... Lakes and process being used to start cleaning it up-comments: Everyday, roughly 3630 kilograms of toxic chemicals enter the lakes, nearby land and air. Pollution of the Great Lakes has become an increasingly serious problem. Just in Lake Ontario, hundreds of thousands of tons of contaminants have been ... people depend on Lake Ontario alone for drinking water. The environmental problem of greatest concern to Lake Ontario neighbours is water-discharged toxic chemicals and industrial air pollutants. Not only is this occurring in Lake Ontario but the other Great Lakes as well. The lakes p...

• Word Count: 3045
• Approx Pages: 12
• Has Bibliography

... name suggests, acid rain is rain, which is acidic. The rain becomes acidic because of gases like sulphur dioxide and nitrogen oxide, which are produced due to air pollution, dissolve in the rainwater and form various acids. When this acid rain contact with anything such as " soil, water, plants and building materials - ... Dr. Mason from the Ottawa Forest Research Institute says that there is another way in, which our poor tress are harmed. See sulphur dioxide gas in the air dissolves with rain to form acid rain. But not all of of the gas dissolves with rain. Some of it remains in a gase...

• Word Count: 2708
• Approx Pages: 11
• Grade Level: High School

... Pollution of the Great Lakes has become an increasingly serious problem. Everyday, roughly 3630 kilograms of toxic chemicals enter the lakes, nearby land and air. Pollution of the Great Lakes has become an increasingly serious problem. Just in Lake Ontario, hundreds of thousands of tons of contaminants have been ... people depend on Lake Ontario alone for drinking water. The environmental problem of greatest concern to Lake Ontario neighbors is water-discharged toxic chemicals and industrial air pollutants. Not only is this occurring in Lake Ontario but the other Great Lakes as well. The...

• Word Count: 2958
• Approx Pages: 12
• Grade Level: High School

... and is decomposed. Digestion reduces organic matter by 45 to 60 percent. Drying Beds: Digested sludge is placed on sand beds for air drying. Percolation into the sand and air drying are the main processes involved in the dewatering process. Air drying requires dry, relatively warm weather for greatest efficiency, and some treatment plants have a greenhouse- like structure to shelter the sand beds ... ...

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