Why does the tundra lack tree growth?

Why does less erosion & more deposition take place on the outside bank of a meander?

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 was apartheid and how did it restrict the rights of non-whites?