Change the passive constructions in the following sentences into active constructions so as to make them direct and concise. (a) The damage was caused as the material was exposed to sunlight. (b) Many...

Change the passive constructions in the following sentences into active constructions so as to make them direct and concise.

(a) The damage was caused as the material was exposed to sunlight.

(b) Many electronic and mechanical processes are mostly explained by students by using block diagrams.

(c) Besides digitized images, a wide variety of graphics that supplement written material are created by writers.