The northwest ordinance of 1787 set a precedent for other western territories by

The Northwest Ordinance set a precedent for other western territories by establishing the requirements needed in order to become a US state.

The Northwest Ordinance outlined a series of requirements that a territory must meet in order to become a state. These requirements included:

1) Having a governor appointed by the US federal government when the territory only had a few settlers.

2) Create a state legislature.

3) Developing a state constitution.

4) Having a population of at least 60,000 free people.

The requirements outlined would allow for the creation of six different states in the midwest US.

in contrast, the biological controls are self-sustaining, inexpensive and very effective once established. biological control could be used on thousands of golf course acres, improving their biodiversity and quality as wildlife habitat. in the process, the golf industry will be shown to be leaders in an environmental stewardship program of benefit not only to the lands they manage but also to the watersheds in which they exist.

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: