Kick scooter and oil well: what they have in common

1. Step 1. Kick scooter — works like — Skateboard. A board on wheels driven by pushing off; the kick scooter adds a handlebar.
2. Step 2. Skateboard — is made of — Polyethylene. The wheels are polyurethane.
3. Step 3. Polyethylene — is made of — Crude oil. Made from petroleum products.
4. Step 4. Crude oil — uses — Oil well. Oil is extracted from wells.

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