Question

राइट शॉर्ट नोट ऑन यूज़ ऑफ प्लास्टिक​

Answer 1

Explanation:

A plastic is a material that can change its shape. Many things are made of plastics, usually because making them the right shape is easy. ... These plastics can be used for 3D printing, because the plastic will become soft enough to form into different shapes, and then become hard again when they cool down.