The graph shows the change in a fish population over several years. during this same time, artificial fertilizer was used nearby. what probably caused the fish population to change in the way shown? a. too much oxygen b. an algal bloom c. a gene mutation d. too little nitrogen

B. An algal bloom

the process involved here is called eutrophication that causes a growth in algae.

there is not 1 highest source of protein, but there are many; meats, fish, poultry, seafood, cheese, eggs, yogurt and milk. the only non complete animal food that is beneficial is gelatin.

sorry if this did not , have a great day!