What kept most foreign invaders from China's lands? fearsome samurai
natural barriers such as seas, mountains, and deserts
soldiers placed along the Silk Road
Mongol warriors hired by China's emperors

it increase by 12% a year from 1812-1820

the answer is a

explanation:

1

b gas tractor

2

c and negotiated lower prices for farm equipment and supplies

3

d the grange

4

c over 15,000 bankrupt businesses

5

c people became more self-sufficient

basically means the stoc market is going down since   dow is one of the most sucessful buiness it would be a tragedy for it to go down and it ensures the ruinty of the stock market