Some of the commonly known pollutions are;
Air pollution occurs when harmful gases are released into the atmosphere like sulphur dioxide.This makes the air toxic .These harmful gases also contribute to acid rain and global warming.This creates difficulty for animlas and plants to survive.Breathing in polluted air can also result in asthma and cancer in the lungs.Smoke from chimneys,factories,burning of wood or coal etc are some of its sources.
Water pollution is a common sight nowadays.It occurs when water gets polluted by wastes making it harmful for consumption.Factories may dump their wastes in water bodies.Excess use of pesticides can pollute ground water system.Oil spills can also polllute water.Many aquatic animals face threat due to water polluion.
Land pollution occurs when excess waste is dumped on the land.Some animals like cows may eat plastic which can choke them.The soil may also get polluted if too much of insecticides or pesticides are used making it difficult for plants to grow on the land.
Radioactive pollution is highly dangerous.It may cause diseases such as infertiliy,cancer,blindness,can affect air,water,soil and can cause defects at birth.It may occur due to improper disposal of nuclear wastes,nuclear plant malfunctions etc.
Heat pollution occurs when excessive heat is created in the environment.It can happen due to air pollution,deforestation etc. It can affect wildlife and can cause climatic changes.
Ligt pollution is ofen visible in big cities,on billboards etc.It occures due to prominent illumination of an area.It not only affecs the inhabitants of the residential srea but also affects astronomical observations and activities by making stars almost invisible.