Grade 9 Unit 2 Topic 1 Section D

There are many kinds of pollution around us, including air pollution, soil pollution, noise pollution and light pollution. They are bad for our health in many ways.
Burning gas, oil and coal creates air pollution. It can cause sore eyes and breathing problems.
With the increase in population and the development of industry, litter is everywhere. It makes our environment dirty. People put lots of litter into the land. In the fields, farmers use too many chemicals which destroy the soil. Soil pollution causes unhealthy food.
Noise pollution can make people deaf. For example, people may lose their hearing if they work in a noisy place for a long time. Too much noise can cause high blood pressure as well.
Working in strong light for a long time may cause some kinds of illnesses. It makes people feel terrible and is especially bad for eyes.

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