19. how did the song dynasty contribute to advances in transportation?

by inventing gunpowder
by inventing paper money
by inventing sail boats
by inventing the magnetic compass
20. how did nerva attempt to improve the roman economy?

he raised taxes on imports to increase trade.
he revised the banking and money systems.
he to control inflation by fixing prices.
he granted land to small farmers.
21. why did the chinese require the portuguese to pay for goods in gold and silver when trading?

the imperial government wanted to stockpile gold and silver.
portuguese and chinese currencies were not exchangeable.
portuguese goods were less valuable than chinese goods.
the chinese already had a surplus of portuguese goods.
22. why did the chinese silk trade die during the ming dynasty?

the chinese drove the silkworms to extinction by overusing them.
the europeans learned the process and could make their own silk.
the european desire for silk diminished and the demand was reduced.
the chinese used water routes, and silk could not travel over water.

19. How did the Song Dynasty contribute to advances in transportation?

By inventing the magnetic compass

20. How did Nerva attempt to improve the Roman economy?

He granted land to help small farmers.

21. Why did the Chinese require the Portuguese to pay for goods in gold and silver when trading?

Portuguese goods were less valuable than Chinese goods.

22. Why did the Chinese silk trade die during the Ming Dynasty?

The Chinese drove the silkworms to extinction by overusing them.

Hope this helps

d

explanation:

                the united states presidential election of 1912 was the 32nd quadrennial presidential election, held on tuesday, november 5, 1912. the election was a rare four-way contest.

                incumbent president william howard taft was renominated by the republican party with the support of its conservative wing. after former president theodore roosevelt failed to receive the republican nomination, he called his own convention and created the progressive party (nicknamed the "bull moose party"). it nominated roosevelt and ran candidates for other offices in major states. democrat woodrow wilson was finally nominated on the 46th ballot of a contentious convention, to the support of william jennings bryan, the three-time democratic presidential candidate who still had a large and loyal following in 1912. eugene v. debs, running for a fourth time, was the nominee of the socialist party of america.

                wilson won the election, gaining a large majority in the electoral college and winning 42% of the popular vote, while roosevelt won 27%, taft 23% and debs 6%. wilson became the only elected president from the democratic party between 1892 and 1932, and the second of only two democrats to be elected president between 1860 and 1932. this was the last election in which a candidate who was not a republican or democrat came second in either the popular vote or the electoral college, and the first election in which all 48 states of the contiguous united states participated.

hope this !

-austint1414