One of Truman's greatest achievements as president, which utilized the greatest extent of his executive powers, was the racial desegregation of the armed forces.
They played the British empire and the French empire again st each other by sighing each others treaties both. This counterbalance both of the powers that if one tries conquer Thailand, the other will try to stop it.
Answer:
the transfer of people's, diseases. plants, and animals between the New and Old Worlds
The correct answer is option A "Desertification created a barrier to the north". Bantu-speakers, were originally from Congo, and they migrated to eastern and southern countries of Africa approximately from 1000 BCE through 1700 AD. Bantu migration did not occur to the north since desertification created an hostile environment for Bantu people.