Question

4. Plastic that have heavy cross-linkiny
5. Substances that cannot be decomposed by microorganisms​

Answer 1

Answer:

4. Thermoset plastics

Heavy cross-linking produces materials known as thermoset plastics. Once the cross-links form, these polymers take on a shape that cannot be changed without destroying the plastic.

5.

Substances which cannot be decomposed by a biological process is known as Non-biodegradable substances. Most of the inorganic waste is non-biodegradable.

Answer 2

Answer:

plastic that have heavy cross-linkiny are called THERMOSET PLASTIC

substance that cannot be decomposed by microorganisms are know as NON-BIODEGRADABLE SUBSTANCE