Goodman and davis live in an area of new york city in which there is a 20-story limit on buildings. goodman owns a 12-story building. davis wishes to build a 26-story building. goodman wants to sell davis a portion of his unused air rights. the air rights being sold in this scenario are called:

option d is correct. corroborated sources of historical evidence   is necessary to validate a claim about an event in history.

historians tend to use written sources, but audio and visual materials as well as artifacts are important objects that supply information to modern historians.

historical sources are usually divided into two categories: primary and secondary sources. depending on the historian's intent, some sources shift their designation. determining what type of sources toimplement, and the level of credibility and reliability of those sources, is a significant step in critical thinking for the historian.

explanation:

the birthmark on georgiana's face alludes to the doctrine of "original sin," being tainted with evil from birth

a yes vote means: the legislature, with a two-thirds vote, could change daylight saving time if the change is allowed by the federal government. absent any legislative change, california would maintain its current daylight saving time period

the noble might have thought that the system was far because they had lot of things and riches and the serf would have thought that the feudal system was un fair because of the way they were treated.