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信息发布者：
survey
empty
coal
oil
form
step
pollute
polluted
living
living
harmful
harm
carelessly
careless
simple
simply
be filled with
use both sides of the paper
take their own bags to the supermarket
be asked about their daily habits
look nicer with more trees around
reduce dust and help keep the air clean
be harmful to our health
=do harm to our health
keep soil in place
change for the worse
some simple steps to take
reuse water if possible
be in use
Pollution is one of the biggest problems in the 
world today.
We should try our best to protect the environment.
Coal, oil and natural gas are not only useful 
for families, but have a wider use for factories.
If we do not act to improve the environment, 
more living things will be killed by pollution.
Follow these small steps, and you can make 
a big difference to the Earth!
Recycling is also a good way to help reduce 
pollution.
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