How does brain drain relate to population growth

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

Acharreadas is a popular mexican thing where people display varying skills of horsemanship much like what events in the united states?

Which city area has the most accessible oil reserves a) caspian sea b) siberia c)arctic coast d)lake baikal