The invention is made independently by several persons at
A.about the same time
B.different time
C.None of these
A.about the same time
B.different time
C.None of these
A.political change
B.economic change
C.social change
D.None of these
A.Maclver
B.Ogburn
C.Graham Wallas
A.a state of felt deprivation.
B.an attempt at the intelligent direction of social change.
C.managing the society.
A.purpose
B.policy
C.need
D.society
A.selective
B.independent
C.both of these
A.1888
B.1977
C.1868
A.1891
B.1845
C.1888
A.democracy
B.aristocracy
C.bureaucracy
A.cross-fertilization
B.social change
C.economic change