Question

Due to its __________, clay is frequently used to make three-dimensional preparatory sketches for other sculptures

Answer 1

Due to its flexibility, clay is frequently used to make three dimensional preparatory sketches for other sculptures.

Answer 2

Due to its "weakness", clay is frequently used to make....

Any other substance used for three-dimensional preparatory sketches may show cracks and air pockets which will end up in a coarse and rough finishing as opposed to clay which can be molded due to its flexibility and weakness easily to the desired shape.