What does irrigate mean?

Why do you think the delegates to the first contintal congress believed that refusing to buy british goods would their cause?

Why might collective bargaining fail, causing a union to go on strike? a the union agrees with the boss about wages. b the boss compromises about work hours. c the factory goes out of business, causing the workers to lose their jobs. d the boss refuses to address dangerous working conditions in the factories.

This map is depicting the 16th century route of what explorer