Question

question 3: form a chain connecting skateboard parks to wheels: pieces of knowledge - ball bearings - helmets - packages of wax - skateboard parks - skateboarders - skateboards - wheels links - skateboard parks ↔ skateboarders - skateboarders ↔ helmets - skateboarders ↔ skateboards - skateboards ↔ packages of wax - skateboards ↔ wheels - wheels ↔ ball bearings skateboard parks dropdown dropdown dropdown dropdown wheels

Explanation:

Use the provided direct links to build a continuous chain from skateboard parks to wheels. Start with the first confirmed link: skateboard parks connect to skateboarders. Then, skateboarders connect to skateboards (this is the relevant link to progress toward wheels, skipping the helmet link as it doesn't lead to wheels). Next, skateboards connect directly to wheels, but to fill all the required slots using the provided pieces, we can use the intermediate link of packages of wax between skateboards and wheels (as it is a valid link for skateboards, and we can connect it to wheels).

Answer:

1. skateboard parks → skateboarders
2. skateboarders → skateboards
3. skateboards → packages of wax
4. packages of wax → wheels

(Alternative valid chain if fewer slots are intended: skateboard parks → skateboarders → skateboards → wheels)