Pollution is the introduction of harmful materials into the environment. These harmful materials are called pollutants. Pollutants can be natural, such as volcanic ash. They can also be created by human activity, such as trash or runoff produced by factories. Pollutants damage the quality of air, water, and land. See more Pollution is a global problem. Although urban areas are usually more polluted than the countryside, pollution can spread to remote places … See more Polluted air can be dangerous, even if the pollutants are invisible. It can make peoples eyes burn and make them have difficulty breathing. It can also increase the risk of lung cancer. See more Governments have tried to prevent acid rain by limiting the amount of pollutants released into the air. In Europe and North America, they have had some success, but acid rain remains a major problem in the developing world, … See more Acid rain also wears away marble and other kinds of stone. It has erased the words on gravestones and damaged many historic buildings and … See more WebHow to use pollution in a sentence. the action of polluting especially by environmental contamination with man-made waste; also : the condition of being polluted; pollutant…

A Look at HTTP Parameter Pollution and How To Prevent It

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