Adam smith’s ideas that are present in the day-to-day workings of the us economy include all of the following except:
a.
invisible hand
b.
specialization
c.
trade regulation
d.
economic freedom

C. Trade regulation

Explanation:

Adam Smith who is also known as the Father of Modern Economics, published a Book titled "Wealth of nation" in which he famously talks about the free trade and No government Regulation on Entrepreneurs, Although Trade regulation is the regulation which is set by the federal and state government on Trade.

the correct answer is "c: merchants" and "e. soldiers".

the song dynasty was known as the first government in the world to introduce paper currency. it was also the first chinese government which established a permanent standing navy. finally, the first compass was introduced during this period of government.

all of these innovations heavily affected commerce in a positive way. printed money dynamize commerce within the borders of the empire due to an easier way to quantify value during the trade. the introduction of the compass trade routes to be faster. finally, the introduction of a standing navy regulate trade routes.

regarding military affairs, gunpowder was created during this period. this was a tremendous improvement that was widely utilized by the military in order to innovate in the manufacturing of weapons.

the causes of the dust bowls were severe droughts,   lands became dry and hard, temperature was higher than usual, hot and dry conditions killed crops, high winds. because of those factors, the winds kicked up dry soil and created clouds of dust.