What group was part of the rising middle class of the Sung period? servants
scholars
shopkeepers
soldiers

the mongolian invasion of china and central asia resulted in a disruption of the silk road as the chinese garrisons lost support from the chinese kingdoms which fell under the mongols. however, as the mongols established a formal dynasty in china, the successors of genghis khan restored the garrisons along the silk road allowing the safe travel caravans again.

the correct answer is, it increases the amount which is being deposited in the bank account of people.

when the fed buys treasury   bonds it increases the amount which is being deposited in people's accounts.

treasury bonds are termed as long-term or secure investment which offers payment after every six months up to the maturity of the bond.

there is a fixed rate for every treasury bond whereby the interest rate is being determined by the auction.

there is an additional fees for those who have not yet opened accounts with local commercial banks.

the nets, boats and fishing poles are examples of determinants for catching fish. if a fisherman has a quality fishing net and fishing poles plus a high end fishing boat, then there is a big opportunity or possibility that he may catch more fish.

moreover, fish production is directly proportional to its determinants such as boat, net, fishing poles and bait. therefore, a good equipment is a determinant while fisherman’s effort is an input to his fishing skills and the output is the production made out of catching fish.