The harmful toxic substances that cause pollution are known as pollutants. Pollutants can be natural, such as volcanic ash. Pollutants like carbon dioxide and carbon-monoxide pollute the air.

Find the given words in the grid. Pollution Nitrogen oxides Carbon monoxide Fossil fuels Petrol Lead Ozone Sulphur dioxide

Pollution is the addition of unwanted materials in the environment. Carbon monoxide is a major polluting gas. Petrol combustion generates particulate matter. Ozone is example of air pollutant. Nitrogen oxides are generated from burning of petrol. Fossil fuels are formed by anaerobic decomposition of dead organisms. Lead is a chemical element that cause water pollution. Sulphur dioxide is an air pollutant.

Harmful substances that are let out into the air, on land, or in water, are called pollutants. Pollution affects our health. We must all help to avoid pollution. For example, chemicals released into the water or thrown in the soil, pollute the water and soil.

The harmful toxic substances that cause pollution are called pollutants. There are mainly four types of pollution — air pollution, water pollution, soil pollution and noise pollution.

Match the following. 1 Sulphur dioxide Water pollution 2 CFCs Acid rain 3 Plastic bags Global warming 4 Agricultural runoff Ozone hole 5 Carbon dioxide Soil pollution

Sulphur dioxide is one of the main components of acid rain. CFC is responsible for ozone layer depletion. Plastic bags cause soil pollution as they fail to decompose. Agricultural runoff leads to water pollution. Carbon dioxide gas adds to global warming. 1 Sulphur dioxide Acid rain 2 CFCs Ozone hole 3 Plastic bags Soil pollution 4 Agricultural runoff Water pollution 5 Carbon dioxide Global warming