Explanation:
Textbooks
Literature reviews and review articles (e.g., movie reviews, book reviews
Biographical works
Reference books, including dictionaries, encyclopedias, and atlases
History books and other popular or scholarly books
Commentaries and treatises
Answer:
8. Barter Economy
Explanation:
Barter means exchange goods for services.
The Sky at night (Sir) Patrick Moore final episode can be found on U Tube. He was on the air for 50 years. He died in 2012
The Romans would develop road systems as they went along with their expansion. Every time they'd conquest new territory, they'd make sure to keep the new colonies controlled by facilitating access to them through the construction of new roads. In addition, the development of these routes was crucial to containing attacks and ensuring a successful defense of the Empire, as the armies would move move faster and arrive quickly to the territories in conflict.
This strategic emphasis in roads and bridges was vital to the success of their army. The routes were built specifically with speed of movement in mind, designing them mostly in straight lines for efficiency.
Hope this helps!
There were three principles created by Chief Justice John Marshall
1: the constitutional is the supreme law of the land
2: the court has the power to rule that a law is unconstitutional
3: in the event of a conflict between laws, the constitution MUST be followed.
