Allowed for echolocation and underwater discoveries such as study of marine life
Answer:A.
Explanation:The French and Indian War also had lasting (and devastating) effects for the Native American tribes of North America. The British took retribution against Native American nations that fought on the side of the French by cutting off their supplies and then forcibly compelling the tribes to obey the rules of the new mother country.
The m∠BAD would be C. 71.58<span>°. This is because of the theory of supplementary angles. </span>