City X has summers around 25 degrees centigrade and winters around 5 degrees centigrade. City Y has summers around 30 degrees centigrade and

winters around -20 degrees centigrade. What might cause this difference?

A. City X is on the equator, while City Y is just above the equator.

B. City X is in the middle of a continent, while City Y is on a coast.

C. City Y is on the equator, while City X is just above the equator.

D. City Y is in the middle of a continent, while City X is on a coast.

SUBMIT

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. 

Master planned communities outside of chicago. note: population density means people living in an area per square mile. chicago, an urban and highly populated area has a much more higher density than a desert, amish community, settlement, or nomadic region.