By 1955, carbon dioxide, heat, humidity, and other contaminants produced by 1,200 visitors per day had visibly damaged the paintings. ... Consequently the cave was closed to the public in 1963, the paintings were restored to their original state and a monitoring system on a daily basis was introduced
I think your answer is b) strings
Nice :) I’m fully Mexican!!
Answer:
Symmetry is achieved when parts of an object are arranged along an imaginary center line. Proportion is the relation of one part to another, or of parts to the whole, in respect to size, height, width and scale. Symmetry provides balance and aesthetic appeal.
Explanation: