Read the excerpt from “tools of the spymaster." james jay's invisible ink did not become visible by heating. as he described it, his ink "would elude the generally known means of detection, and yet could be rendered visible by a suitable counterpart." jay's invisible ink consisted of two chemicals. an agent used one chemical to write an invisible message. to read the message, the reader had to brush a second chemical on the paper; that chemical made the message visible. the two-bottle system, supplied by jay, gave washington the secure form of writing that he wanted. which statement best expresses the central idea of the excerpt? james jay was a spy for the americans and had knowledge of chemistry. james jay’s invisible ink system allowed washington to write secret messages. james jay believed secret messages that became visible because of heat were not secure. james jay’s system required two chemicals for writing and reading invisible ink messages.

answer; the basal forebrain;

new communications technology has affected the way social movements are organized because nowadays, social movements rely on social networks and the media to get different people with a similar way of thinking in contact, and thus, get them to mobilize for a greater cause.

individuals only participate in collective action when they feel identified with it. is in this aspect that social media becomes relevant, because it guarantees communication among all individuals and organizes the social actions that are going to be carried out, i.e., the social movements.

in addition, being covered by the media is important to validate the message and make it relevant in the social agenda, as well as to reach more people who can share interests, appealing to public sympathy for their cause.

in conclusion, it is by social networks and social media that social movement is given birth; by connecting different individuals with similar ideas and organizing them to mobilize for a greater cause.

answer; /// the above statement is (true);