<p><span style="font-family: verdana, geneva, sans-serif; font-size: 12pt;">Air Pollution: Air pollution is the contamination of air in the atmosphere when harmful or excessive quantities of substances such as smoke and harmful gases from industries, CFCs and oxides produced by the automobiles, the burning of solid wastes, etc. are introduced into the environment. Water Pollution: This refers to the contamination of natural resources of water, due to addition of harmful chemical, biological or physical materials, which includes industrial wastes, oil spills, domestic and farm wastes, pesticides, as well as mining and agricultural wastes, to water resource which make it unusable. Soil Pollution: Land/Soil Pollution occurs due to degradation of the earth&rsquo;s surface by different commercial, industrial, agricultural and domestic activities. Causes of soil pollution also include mining, deforestation, Dumping of e-waste and other industrial wastes, usage of harmful chemicals such as insecticides, pesticides, etc. Noise Pollution: Excess of noise due to sounds created by machines, loudspeakers, microphones, loud music, noise from industries, from construction and civil engineering works etc. lead to noise pollution.</span></p>