Answer:
In short, there are four types of natural silk produced around the world: Mulberry silk, Eri silk, Tasar silk and Muga silk. Mulberry silk contributes around as much as 90% of silk production, with the mulberry silkworm generally being regarded as the most important.
What are the answer choices, if there are any?
Work = Force x Distance = 500 x 4 = 2000 Nm = 2000 J
Explanation is in the file
tinyurl.com/wpazsebu