At what point or points on the x-axis is the electric potential zero?.

Show all steps i have my exam tomorrow

The graph shows a trend in an ecosystem over time caused by increased pollution in the region. what can you conclude from the graph? a. there’s lower biodiversity among birds. b. there’s a higher reproductive rate among birds. c. there’s a significant decline in the number of producers. d. other types of animals were unaffected by pollution.

Igot a 80% on my final to os ya take these points in return