Why was it necessary to chain the wagons together at times along the Oregon Trail?

How was the appointment of two consuls during the roman republic an example of a democratic principle? one consul represented patricians and one represented plebeians, so that all citizens had representation each consul had control over the same number of military legions, which prevented either one from a forceful takeover. consuls had to agree on all decisions, which prevented any one person from gaining too much power. consuls had to make decisions based on majority rule in the senate. quickly

Why is it difficult to determine which countries belong to europe and which belong to southwest asia

Select the phrase that best describes "race."a. religiously distinct b. different species c. socially constructed d. factually accurate