Answer:
Technological innovations increased agricultural yields.
Explanation:
The Chinese economy in the period 1200-1450 increased due to higher production of agricultural crops with the use of new technologies. In the period of song dynasty, an early growing rice cultivar was produced which can be grown multiple times in a year. Due to multiple harvest, food was available in large amount for the people so we can say that innovations increase the yield of crops.
Answer:
Right choice:
(3) Alliances could draw the United States into wars.
Explanation:
Since its inception, the American republic was wary of distant foreign entanglements, especially in Europe. That was the feeling of a majority in society in different times. Those attitudes changed in the 20th century, only after WWII. In the first decade of the American government of Washington, there were debates and the temptation to side with France or Britain in their contemporary wars. Washington decided to stay neutral because he knew the US was not strong enough to fight war.
Federalism is one of the central principles of American Constitutionalism because helps in the dividing and sharing of power between state and national governments, thus, making organization of the government manageable and standardized.
The other major principles of American Constitutionalism are:
Popular Sovereignty; Checks and Balances; Limited Power of the Government; Separation of Branches.
