PDF chapter test TRY NOW
Answer the following questions in a few sentences:
1. Select the articles from the following list which are biodegradable.
(a). paper (c.) wood
(b). woolen clothes (d). aluminium can
(e). plastic bag (f). peels of vegetables
(a). paper (c.) wood
(b). woolen clothes (d). aluminium can
(e). plastic bag (f). peels of vegetables
The biodegradable articles are:
woollen clothes
wood
2. A bucket made of plastic does not rust like a bucket made of iron. Why?
Plastic is material. When left exposed to moisture and air, it does not react with , which are essential for corrosion, therefore, does not rust.
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