Question

why did canada extend its territorial waters out to 200 nautical miles in the 1970s.
a. to protect and conserve canadas cod stocks
b. to protect the resources for domestic exploitation
c. to annoy u.s. fishermen
d. to restrict cod fishing practices

Explanation:

In the 1970s, Canada extended its territorial waters to 200 nautical miles mainly to protect and conserve its cod stocks. Over - fishing by foreign fleets (not just U.S. fishermen) was a major concern. Protecting resources for domestic exploitation was also a factor as it allowed Canadian fishermen to have more access to the fish stocks. Restricting cod - fishing practices was part of the conservation effort. Annoying U.S. fishermen was not the main or legitimate reason.

Answer:

A. to protect and conserve Canada's cod stocks, B. to protect the resources for domestic exploitation, D. to restrict cod fishing practices