Question

kwolek used a laboratory spinneret.
kwolek developed the nylon rope trick.
kwolek developed kevlar.
problem
kwolek’s team needed a replacement for steel in tires.
the solution was thin and cloudy.
kwolek wanted to demonstrate how to prepare synthetic materials.
solution

Explanation:

To solve this matching problem, we analyze each "Problem" and match it with the appropriate "Solution" (the blue statements) based on context:

1. For "Kwolek’s team needed a replacement for steel in tires": The relevant solution is "Kwolek developed Kevlar" because Kevlar was developed as a strong material, potentially for tire reinforcement (replacing steel).
2. For "The solution was thin and cloudy": The relevant solution is "Kwolek used a laboratory spinneret" – using a spinneret would be part of processing a (thin, cloudy) solution into fibers.
3. For "Kwolek wanted to demonstrate how to prepare synthetic materials": The relevant solution is "Kwolek developed the nylon rope trick" – a trick to demonstrate synthetic material preparation (like nylon, a synthetic material) makes sense here.

Answer:

• Problem: Kwolek’s team needed a replacement for steel in tires; Solution: Kwolek developed Kevlar.
• Problem: The solution was thin and cloudy; Solution: Kwolek used a laboratory spinneret.
• Problem: Kwolek wanted to demonstrate how to prepare synthetic materials; Solution: Kwolek developed the nylon rope trick.