Question 20 A material is biodegradable if A it is made of synthetic material. B it is made from petroleum or natural gas. it can be broken down by biological processes. D if can be disposed of in a landfill.

Question 20

A material is biodegradable if
A
it is made of synthetic material.
B
it is made from petroleum or natural gas.
it can be broken down by biological processes.
D
if can be disposed of in a landfill.

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