Page 83 - full

 Switch off the lights and fan if you are not using it.
 Switch off the computer, tv or radio if you are not using it.
 Use the new light bulbs. 15 watts in a new bulb is equal to 75 watts in an old one.

They last longer too.
 Switch lights off when you leave a room.
 Switch off lights, taps and computers
 At school remember to switch off lights when the room is empty.

Make Less Rubbish

 Help make a compost heap or start a worm farm by using food scraps.
 Sort out the garbage into what can be recycled and what can't. Use the recycle bin.
 Save computer paper by printing on both sides.
 Recycle clothes, toys, books and games by giving them to another family, charity

shop or putting into a charity recycle bin at the supermarket.

At school you could: At home you could:
 use the recycle bin for paper  give away your old toys to the

and cardboard. needy.
 start a school compost heap or  throw garbage in the dustbin

a class worm farm. rather than throwing them an
 use less paper. your room’s floor.
 not throw waste paper and  make compost of vegetables
and fruit peels.
reuse it for rough work.  use your old clothes for
 plant more trees. cleaning floors, cars and
 not pluck flowers and ruin the mirrors.
 use less water.
beauty of environment.

Causes of Air Pollution

Air pollution occurs when the air contains gases, dust, fumes or odour in harmful
amounts. It is very harmfull to all living beings. The substances that pollute the air are
called pollutants. Since few decades, human activities have affected the environment
upto a critical level, which have been posing a serious threats to all living beings.
Global warming and hole in ozone layer is the example of fatal result of air pollution.

87