Consider the following pairs:
| Plastic | Characteristics |
| 1. High-Density Polyethylene (HDPE) | Recycling is not possible |
| 2. Polyethylene terephthalate (PET) | The most widely recycled plastic in the world |
| 3. Polypropelene | Can Withstand High Temperatures |
| 4. Polystyrene | Least harmful to the Environment |
Which of the pairs given above are correctly matched?
1
1 and 4
2
2 and 3
3
1 and 3
4
2 and 4