Isaac’s teacher asks him to lead a group of students through a research project using online resources. Which action shows that Isaac knows how to practice netiquette?

1. which of the following statements are true about routers and routing on the internet. choose two answers. a. protocols ensure that a single path between two computers is established before sending packets over it. b. routers are hierarchical and the "root" router is responsible for communicating to sub-routers the best paths for them to route internet traffic. c. a packet traveling between two computers on the internet may be rerouted many times along the way or even lost or "dropped". d. routers act independently and route packets as they see fit.

What is one reason why indoor air pollution has become an increasing problem.

Why do we mark tlc plates with pencil and not with pen