Environment:Land, water, air and our surroundings
make our environment.
Pollution:Pollution is a harmful change in our
environment.
The
substances which cause pollution are called pollutants.
There are three main type of pollution. (1) Air Pollution (2) Land Pollution (3) Water Pollution
Air
pollution causes Asthma, skin and eye allergies,
headache and lung diseases.
Ozone
layer protects earth from the sun harmful
rays.
Air pollution is the main cause of depletion of ozone layer.
Bio-degradable Materials: Those
materials which degraded by nature. Example of Bio-degradable materials are dead
animals, plants, and left over foods.
Non-Biodegradable materials:Those materials cannot be degraded by natural methods. Plastic bags,
empty cans, electricity wire, fused bulbs and broken parts of machines are no
biodegradable materials.
The main cause of air pollution is burning of
fuels.
The 3R are Reduce, Reuse and Recycle.
Things around us make our………. a) Habitat b) Environment c) Colony d) Home
