<span>While World War I on the Western Front developed into trench warfare, the battle lines on the Eastern Front were much more fluid and trenches never truly developed. This was because the greater length of the front ensured that the density of soldiers in the line was lower so the line was easier to break.</span>
D. the federal government pass strict laws related to Union formation and activities
Large number of Vietnamese refugees fled to the united states
Answer:
Africans exchanged their local products like gold, ivory, salt and cloth, for North African goods such as horses, books, swords and chain mail.
Explanation:
btw i looked it up and you ca basically put any of these.
