What innovation helped maintain the growing populations during the Tang and Sung periods? the Silk Road
the Grand Canal
the spinning wheel
terrace farming

Martin, a 32-year-old human relations administrator at a university, believes that all professors over age 50 are incapable of learning the new educational technologies and are content to keep presenting their same "tired, boring" lectures. he often expresses these views to other administrators and does not encourage any of the "older" faculty members to attend professional development meetings related to new teaching approaches nor does he suggest that the university send them to any of the technology conferences. martin is exhibiting

Why would it be hard to live in a city state

The cause and events that led to civil rights