In 1841 the gun salute was standardized to how many guns

21

Explanation:

Gun Salutes are traditionally used to honor the military and political officials and it was a symbol of trust and respect. Before 1841 The United States national salute consist fire of one gun from each state in the Union. It was a customary practice to that when a foreign vessel arrived at the port of a country to salute the national flag with the guns in that country's national salute. Therefore a need arises for standardized gun salute which was 21 for most of the nations and adopted by the United States as well.

if interdependence implies a two-way dependence, and if each partner is equally dependent on the other for success, then there is an equal commitment to the making the partnership successful. the advantage is sustainability of the relationship, the disadvantage is that decisions are "democratic" and therefore may take longer to reach and more likely to be a compromise (which is not always the best solution). as the interdependence moves away from equality, the decisions become more influenced by the more independent partner. in the extreme the relationship becomes more dictatorial and more like "master-slave". generally the relationship has less commitment in both directions and is more likely to be temporary.

if one generalizes (and one shouldn't), equity partnerships, which is probably what is implied by interdependence, can be slow to progress or change but durable. the extreme alternative, independent-dependent partnerships tend to be efficient but more fragile.

hope this but you will have to site your own evidence. : )

answer; gender,race,age,/// (d) all of these;