Look at the position of Europe and Canada on this world map. Map of the world with each continent highlighted a different color. Canada is in the north-western region of the map, with Europe located just to the north-east of Canada (but almost in the top-center part of the map).

Which of these statements best explains why northwestern Europe enjoys a milder climate than Canada at the same latitude?

Northwestern Europe gets more rainfall than Canada.
Northwestern Europe and Canada are on different longitudes.
Northwestern Europe is warmed by an ocean current called Gulf Stream.
Northwestern Europe and Canada are at different distances from the equator.

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. 

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