What factors explain the major increase in population in half of China and a much smaller change in the other half? A.) an invasion from the north and rich farmland to the south

B.) an invasion from the south and rich farmland to the north

C.) overland trade and urbanization

D.) seagoing trade and urbanization

(I know that it is NOT D)

c

Explanation:

urbanisation played a HUGE factor

if you are talking about current time the answer is no

if you are talking about when the colonies were developing the answer is yes

the correct answer option is: weapons.

explanation:

tensions rose as the two opposing superpowers competed for 'weapons'.

referring to the cold war (1945-1991), the two superpowers, usa and ussr, experienced a phase of struggle and conflict with each other. these two superpowers considered each other as a threat to their survival and thus opted for policies to strengthen their positions.

the two superpowers never went to war with each other directly but competed for weapons to preserve their positions.