Make sure that scrap material that you have collected for your green projects
are not poisonous or dangerous wastes. Even if they are not, make sure
that they have not been contaminated by such wastes.
Discarded
material that contain chemical must be handled with care.
Such
waste can make you sick and
pollute the environment.
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It would be safer to use the scrap material if you know the source you are
getting them from.
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