I think you mean roof trusses? They are a structural framework of timbers designed to bridge the space above a room and to provide support for a roof. Trusses usually occur at regular intervals, linked by longitudinal timbers such as purlins.
Answer:
November 6, 1861
Explanation:
Jefferson Davis was elected President of the Confederate States of America which is not the same as the President of the United States of America. He has been an interim for almost a year before the election. He ran without opposition and it runs for a 6 year term.
Answer:
Foot-in-the-door technique.
Explanation:
The foot-in-the-door technique is a compliance tactic that involves getting a person to agree to a modest request so that, in the long game, they agree to a large request. In this case, the approach in the example is a Foot-in-the-door technique given that they first made a small request (wear a button) so that, after some weeks of wearing that, they accept the large request (adopt a dog).
