Answer:
I can't answer 13, but 14 is silk, ancient China kept secret the way to make silk because (15) it gave them an advantage in trade (the silk road) because other countries would trade their goods for silk since china wouldn't tell them how to make it. Hope this helps!
I'd have to say the westward expansion. mainly because cheap land, economic opportunities
<span>Following are the products the government has helped to innovate:
Information technology
Energy
Health
Trnsportation
Agriculture
Education
</span>
I think it’s the Eastern Woodlands tribe.
