Pls helpp, help pls

Me i really need which of these was an accomplishment of the han dynasty? the invention of the seismograph finding a water passage to europe the invention of the ballpoint pen the invention of the abacus

Which of the following are examples of limited resources on the part of consumers?

1. how did the works progress administration (wpa) contribute to the cultural development of american cities? a. by paying artists to create new works for public spaces b. by granting scholarships to underprivileged students to study art c. by sponsoring cultural exchanges with musicians from other countries 2. which of the following best describes the effect of the new deal on the great depression? a. the new deal eased the effects of the great depression. b. the new deal alone ended the depression. c. production rates during the great depression only fully recovered as the united states prepared to enter world war ii.