What should you do when you’re concluding your presentation? Check all that apply. summarize the main points of your presentation
thank the audience
tell a joke
ask if there are any questions

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.