Page 160 - SCIENCE DLP T6 SK (SEMAKAN 2017)
P. 160
Uses of Biodegradable
and Non-biodegradable Materials
The latest development of technology has produced various products
made of biodegradable and non-biodegradable materials. We need
to use biodegradable and non-biodegradable materials wisely.
Why do we need to use biodegradable
materials wisely?
Biodegradable Materials
PAPER PLATES
Which type of plates do
you want to buy?
Let’s buy the
one that will
GLASS PLATES
not pollute the
environment.
PLASTIC PLATES
How does the use of biodegradable materials help in
reducing environmental pollution?
We must not throw leftover food
into the river.
That’s true. The leftover food
will decompose and cause
the oxygen content in the river
to decrease.
How do biodegradable materials harm aquatic lives?
152 9.1.4
