B,C,E
The Oregon Trail led pioneers to rich farmlands, where they settled.
The California Trail split off from the Oregon Trail at the Rocky Mountains.
The California Trail attracted mainly pioneers seeking gold, especially after 1848.
Immigration Reform and Control Act or better known as the
IRCA was passed in order to amend, reform, and revise the Immigration and
Nationality Act which barred immigration into the United States. This Act was
also to control illegal immigration into the United States.
Answer:
C) a decreased focus on manufacturing
Explanation:
The shift from Jin to Song Dynasty between 1200 and 1450 led to an increase in population, a focus in agriculture and a decreased focus on manufacturing.
The most difficult task was reconstructing everything after buildings were shattered, and the new system of labor, causing slaves to work on new architecture
Using irrigation system was the practice closely associated with most ancient river valley civilization.
