Answer:
Boiling the cocoon helps to dissolve the adhesive that sticks the fibres together. If cocoon is not boiled, the <u>fibres obtained will be brittle,</u> and we will get fragments of the thread instead of a long continuous silk thread.
The answer on your sheet is "A"
Andrew Carnegie is well known for being the monopoly of the steel business in the 19th century and was the richest man on earth.
The answer is B. The Federal military was not able to provide for national security
