If ipv6 addressing is used, how many addresses would be available per square metre of the earth’s surface? do you think there will be enough to go round?

Which statement is true of web-based social media? a.they allow consumers to interact with and update content. b.they cannot be updated easily, as compared to print media. c.they are expensive to produce and maintain, as compared to print and television. d.they can exist independent of the internet.