The Earth's shifting surface areas is best described by the theory of

A. plate tectonics.

B. water damage.

C. erosion.

D. weathering.

Plate Tectonics.

As the plates shift and move, it causes the Earth’s surface to feel the effects, causing area to move as well. This also explains how earthquakes (and sometimes volcanoes!) form.

Hopefully that helps!

:)

answer; /// i do believe its the ; //(iroquois)they were made up of several groups who spoke a common language;

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.