Global knowledge is like common sense, people know these things, but their may be someone else with the same idea. One person can come up with the idea but their is also another with same so don't give someone to much credit.
Answer:
Behavioural targeting
Explanation:
Behavioural targeting is the method that enables advertisers to display more relevant ads based on user's search and browsing history. This is an online targeting technique that collects information from a particular user. This information comes from the person's browsing history. The information that comes from the browsing history enable advertisers to display specific targeted ads that would most appeal to the person in question.
Answer:
files can easily infect your computer with viruses or malware.
Explanation:
Powerpoint, word document, and excel
