"a. Ethnicity is related to culture ; race is related to biological ancestry" is correct and "<span>b. Pop culture focuses on localized traditions and customs" are both correct. </span>
A) they were technologically more advanced
B.air power has the most recent impact on global trade
Preserving the national security of the US. Promoting world peace and a secure global environment. Maintaining a balance of power among nations
They were called duchies.