__ Fiber, Material Used to Make Bike Tubes
Puzzle 17 of Preparing for Guests Easy Pack
Question is: __ Fiber, Material Used to Make Bike Tubes
and the answer is: CARBON
Word Meaning:
CARBON — (uncountable) The chemical element (symbol C) with an atomic number of 6. It can be found in pure form for example as graphite, a black, shiny and very soft material, or diamond, a colourless, transparent, crystalline solid and the hardest known material.
Definitions from Wiktionary.