Explain what occurs in photgraphy reaction???

Explanation:. A photograph is an image made by a photo-chemical reaction which records the impression of light on a surface coated with silver atoms. The reaction is possible due to the light-sensitive properties of silver halide crystals.

when exposed to like a chemical reaction darkens the film to produce an image.

Explanation:

When exposed to light, a chemical reaction darkens the film to produce an image. ... When film containing Ag+ and Cl- is exposed to light energy, the chlorine ion's extra electron is ejected and then captured by a silver ion.

answer; i believe that the correct answer is (a); a large rock being weathered by wind and rain;