THERMOPLASTIC & THERMOSETTING POLYMER

Explanation

### Step-by-Step Solution:

**Step 1: Define Thermoplastic Polymers**
- Thermoplastic polymers are materials that can be softened and melted upon heating. When they are cooled, they solidify again. This property allows them to be reshaped multiple times without undergoing any significant chemical change.

**Step 2: Characteristics of Thermoplastic Polymers**
- They have low melting points and low tensile strength.
- They are synthesized through a process known as addition polymerization.
...