Members of a security team are stationed on rooftops surrounding a large city plaza before a scheduled rally. suddenly, three team members in different locations radio in to the command center, each stating that they have spotted a suspicious box on the ground with a pipe coming from the top. what enables the security team members to report seeing the same object despite being stationed on different rooftops?

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Before they can be published, scientific papers must be peer-reviewed. this means that: a) some other scientific experts read the papers and guarantee that they are true. b) some other scientific experts read the papers and provide quality control by eliminating many mistakes. c) an editor reads the papers, to make sure that all the semicolons are in the correct places. d) everyone in the world is given the opportunity to comment on the papers through a specially maintainedblog. e) government bureaucrats read the papers, to be sure that the papers do not insult the political positions ofthe current officeholders.