Answer:
It is man-made, and is very resilient causing it to last long.
Explanation:
High-quality polyester holds its shape well and doesn't shrink.
It is a synthetic fiber derived from coal, air, water , and petroleum.
Chariot
Chimney
shatter
Chipmunk
Chess
These were all anagrams, words of even entire phrases hidden by scrambling the letters and writing them in a different order
The answer is rx = 3.5 km