Answer:
Salvage ethnography involved gathering of available material and interviews.
Explanation:
Salvage ethnography focuses on documenting nearly extinct cultures. For this reason, the collection of material must be quick. The term is often used for describing Franz Boas' work, as he visited endangered Native American cultures.
Salvage ethnography is also responsible for preserving cultures' art, such as paintings and music.
The Presiding Officer of the United States Senate is the person who presides over the United States Senate and is charged with maintaining order and decorum, recognizing members to speak.
The vice president of the United States is the presiding officer of the senate.
The Ancient Athenian government is known as the first democracy in the world. They created the idea of having an Assembly (or in our day and age a Congress/House of Representatives/City Councils). They relied heavily on citizen participation and elections.
This is known as social infrastructure. These are called social because they are used by all people in a country and are often paid for by the country or the state owns the land on which they are built. When they are private, they often work together with the government.