According to the author, why is it problematic to use datasets created in different datums? Group of answer choices

Positions of features can be offset (or misregistered). For example, a fire hydrant could be shown inside a building.

Because WGS84 only covers the lower 48 states and cannot be used for other locations, such as anywhere in Europe.

Features can be misplaced as much as 100 kilometers when using different datums.

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. 

Yes it does it sure does me later