What causes changes in the sizes, shapes, and positions of Earth's continents and oceans?

A.
very strong ocean currents
B.
global wind belts
C.
continental drift
D.
tectonic plate motion

what's the rest of the question

the elements of art are the visual tools that the artist uses to create a composition. these are line, shape, color, value, form, texture, and space.

the principles of art and design are balance, contrast, emphasis, movement, pattern, rhythm, and unity/variety.