What environment factors may affect an organism that lives on a rocky beach

Tidal waves , light , temperature, salinity etc are the environmental factors that affect life of organisms on rock shores.

Explanation:

Tidal waves- it is the highest threat to organisms live on rocky shores. Inspite of their strong muscular foot , they are unable to protect themselves from high waves.

Salinity- it means saltiness. When water gets evaporates from rock , salt is left behind. If water becomes too salty then organisms have to leave that water.

Temperature - inter tidal zone has extreme temperature. Thise organisms who lives in this zone are resistant to changes to survive.

Light - when there is too much sun rays the organisms becomes dry.

Hence , tidal waves , light , temperature, salinity etc are the environmental factors that affect life of organisms on rock shores.

a time line cause it goes from 685 to 978