Item 8 according to the map, what state can be found at 45º n, 120º w? a dotted grid placed over a political map of the united states. the vertical gridlines begin with 120 degrees west and cut through washington, oregon, and california along the nevada border. they move east in 10 degree intervals. washington d. c. falls between 80 and 70. the horizontal lines begin at 50 degrees north and cut close to the united states border in canada. they move south in 5 degree intervals. washington d. c. falls between 40 and 35. the 120 degree vertical line and 40 degree horizontal line intersect in northern california. maine washington virginia oregon

Mantle convection is the process that drives plate tectonics. the theory of plate tectonics states that the crust is divided into plates that float on the semi molten mantle below. the circular motion of the magma as it slowly rises and falls or move though convection cells drags the plates along causing them to move. the heat source in the lamp would represent the earth's core. the core is the source of energy that drives convection in the mantle. the lava represents molten magma under the earth's surface. if the lava lamp had floating pieces they would move as the circular motion of the lava in the lamp as it rises and falls would move them along the surface. these floating pieces would represent pieces of the earth's crust.