Sudan's Fateful Decision

Who?
Where?
What/Why?

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

Suggest two reasons why irrigation is important for human development of the desert

At which point on the diagram do convection currents occur to drive plate movement?