What are the three air fronts and what are characteristics of each

Which of the following is not an effect of land substance

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

Can someone answer all these questions i need it done by tonight. once again