Polyvinyl chloride (PVC) e petri dish: o que têm em comum

1. Passo 1. Polyvinyl chloride (PVC) — é material para — Cling film. Cling film was made of PVC; now it is more often polyethylene.
2. Passo 2. Cling film — é feito de — Polyethylene. Polyethylene.
3. Passo 3. Polyethylene — é material para — Surgical mask. Non-woven polypropylene.
4. Passo 4. Surgical mask — utiliza — Germ theory of disease. Protection against droplets.
5. Passo 5. Germ theory of disease — é utilizado em — Petri dish. Growing bacterial cultures.

Abrir Evothings