A trade union protests their employers for better or improved working conditions, sometimes through strikes, picketing, etc.
Answer:
a. gold coins
Explanation:
Marco Polo was impressed by the paper money, coal burning and gunpowder in China. But, gold coins are not new to him.
It could be more high tides and flooding
Answer:
the first one,second and fifth
Explanation:
to be sure ask google
Answer:
pre-colinizing north America terrible, after america was colonized their relationship was fine
