Question

7. How are we responsible for pollution on earth?​

Answer 1

Answer:

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Answer 2

Human activity is a major cause of air pollution, especially in large cities. Human air pollution is caused by things such as factories, power plants, cars, airplanes, chemicals, fumes from spray cans, and methane gas from landfills.

Air pollution and the release of gasses into the atmosphere can have many negative effects on the environment. Global warming - One type of air pollution is the addition of carbon dioxide gas into the air. Some scientists believe that releasing too much carbon dioxide into the atmosphere is one of the causes of global warming. This upsets the balance of the carbon cycle. The ozone layer - The ozone layer helps protect us from harmful rays from the sun. It is getting damaged from air pollution such as methane gas from livestock and CFCs from spray cans. Acid Rain - Acid rain is created when gasses such as sulfur dioxide get high into the atmosphere. The wind can blow these gasses for miles and then they get washed out of the air when it rains. This rain is called acid rain and can damage forests and kill fish.

The actual gas or substance that causes air pollution is called a pollutant. Here are some of the major pollutants: Sulfur dioxide - One of the more dangerous pollutants, sulfur dioxide (SO2) can be generated by burning coal or oil. It can cause acid rain as well as respiratory illnesses like asthma. Carbon dioxide - Humans and animals breathe out carbon dioxide (CO2). It is also released when fossil fuels are burned. Carbon dioxide is a greenhouse gas. Carbon monoxide - This gas is very dangerous. It is odorless and is produced by cars. You can die if you breathe too much of this gas. This is one reason why you should never leave your car running in the garage. Chlorofluorocarbons - These chemicals are also called CFCs. They were used in many devices from refrigerators to spray cans. They are not used as much today, but caused significant damage to ozone layer during the time they were heavily used. Particulate matter - These are tiny particles like dust that get into the atmosphere and make the air we breathe dirty. They are linked to diseases like lung cancer.

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