Colombia provides 90% of the world's supply of what gemstone?

emeralds

Explanation:

It is estimated that Colombia accounts for 70-90% of the world's emerald market. While commercial grade emeralds are quite plentiful, fine and extra fine quality emeralds are extremely rare. Colombian emeralds over 50 carat can cost much more than diamonds of the same size.

d.

many people believed they were convicted solely because they were anarchists.

the answer is c. they believed the royal family should hold all the power.