What technology led to people settling down in communities and starting a civilization?

What is the "great pacific garbage patch"? (a) a large area of marine debris concentrated by rotating ocean currents (b) a large area around the pacific rim where debris collects from natural disasters such as tsunamis (c) an area in the pacific ocean where trash is intentionally dumped due to lack of landfill availability (d) a large trash dump located in hawaii

What could the united states of america do to improve their status? name at least 3(ap human geography)

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