Answer:
cause and effect relationship
Explanation:
A causal relationship, also called cause and effect relationship, occurs when two events are related because a first event has a direct influence on another, in other words, because a first event causes the other to happen
{found in brainly}
Answer:
The answer should be 250,000
Explanation:
During the years 1840 - 1860, over 250,000 travelers used trails to migrate from the eastern United States to Oregon and California. Hope this helped and it was correct :)
