Page 264 - New Medley 5 Semester 2

Land Pollution
People throw waste from their houses on roads

and in parks. This makes the environment dirty
and creates unsanitary conditions. Household

waste including plastic bags, thermocol, glass, etc.,
and industrial waste including oily substances,

poisonous metals, etc., are dumped on land making
it polluted. Non-biodegradable substances like Land pollution

plastic bags remain in the soil and pollute it for hundreds of years. The
soil can be polluted by the use of pesticides and other harmful chemicals.

Land pollution can cause many diseases and destroys natural beauty.

Water Pollution
Water pollution occurs when dirty and harmful

things are thrown in ponds, lakes, rivers and
seas. Some people wash their clothes and clean

the utensils in ponds and rivers. We also throw
waste materials from factories, harmful chemicals

and other dirty things into water. The polluted
water can make us sick and cause the death of

water animals. Oil spills from oil tankers in the Water pollution
oceans cause marine disasters. As a result, countless fishes and water

birds die.

Noise Pollution
Loud sound is harmful for living things. It
can damage our hearing system. It is created

by loudspeakers, loud music, television, horns

of vehicles, bursting crackers, machines in the
factories, aeroplanes, etc. We should speak softly
in groups. To avoid loud sound, we can use

earplugs. During festivals, we should not play

music at high volume. Noise pollution

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