Answer:
changing the government in all of the colonies
providing housing for British troops
closing the port of Boston
Answer: A. Global Positioning Satellite (GPS) and two-way radio
The two instruments that were used and that were made navigation convenient and easier in 1990s are the GPS and the two-way radio. GPS is a tracking system using Global Navigation Satellite System.
Raw materials and colonial empire
Embargo. Hope this helps. Please Mark as Brainliest