Question

synthetic fibers, like plastic, are derived from organic compounds. these fibers have been chemically changed by humans to last longer for better storage and more effective uses. these fibers are stronger than naturally occurring fibers (like cotton and wool). which of the following is a downside to these synthetic fibers when compared to natural fibers?
a. the longer lasting material is less useful in manufacturing.
b. the longer lasting material makes the fibers more expensive to buy.
c. the longer lasting material is not able to withstand high temperatures.
d. the longer lasting material is more difficult to break down.

Explanation:

Synthetic fibers are chemically modified for durability, but their long-lasting nature often means they are non-biodegradable (harder to break down) compared to natural fibers like cotton/wool which decompose more easily. This is a key downside.

Answer:

D. The longer lasting material is more difficult to break down