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Elementary school Franjo Krežma, Osijek, Croatia

What is pollution?
Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of any substance (solid, water, or gas) or energy (such as radioactivity, heat, sound, or light).

The major kinds of pollution, usually classified by environment, are air pollution, water pollution, and land pollution. Modern society is also concerned about specific types of pollutants, such as noise pollution, thermal pollution, light pollution, and plastic pollution.

Our students researched more about these types of pollution and made a review of the problem and tips on how we can help reduce pollution.

1.
AIR POLLUTION
According to the World Health Organisation, air pollution refers to the contamination of air due to the presence of substances in the atmosphere that are harmful to the health of humans and other living creatures.
