The answer would be conflict.
The answer is C.) Plants and animals.
Contour Lines.
A perceived line that marks the edge of a figure as it curves back into space. Contour lines are created by the edges of things. Contour lines are lines that surround and define the edges of a subject, giving it shape and volume
Artist's media:
C. and D.
Artist's media are the materials or things used to create art.
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