Threaded bottle neck e oil well: o que têm em comum

1. Passo 1. Threaded bottle neck — faz parte de — Plastic bottle. A thread for the cap.
2. Passo 2. Plastic bottle — é feito de — PET. A PET bottle.
3. Passo 3. PET — inclui — Polyester. Polyester fibre is PET.
4. Passo 4. Polyester — evoluiu de — Nylon. The next synthetic fibre.
5. Passo 5. Nylon — é feito de — Crude oil. The raw material is petrochemical.
6. Passo 6. Crude oil — utiliza — Oil well. Oil is extracted from wells.

Abrir Evothings