How can organizing regions differently serve different purposes?

What did the native title act do? a. it recognized and protected aboriginal rights to land. b. it stated that aborigines were to be counted as part of the census. c. it established aboriginal languages as official. d. it granted aborigines suffrage.

Which of the following is the main purpose of using an anchored network of booms which funnel debris to a collection area?

The volume of the triangular prom is 54 cubic units