Answer:
However, President Eisenhower issued Executive order 10730, which federalized the Arkansas National Guard and ordered them to support the integration on September 23 of that year, after which they protected the African American students.
Explanation:
Answer -Further Colonization of the Americas by European countries is prohibited
Muslims, Magyars, and Vikings all invaded and broke the empire
If possible I'd say all of them except the fourth one down (parts of ecosystems are independant) but if not I'd say the most valid one is the second one down (healthy ecosystems help animals)
