Cod has been a commercially important fish species since . a.
the 13th century
b.
the discovery of North America
c.
the 1960’s
d.
the 1980’s

Which of these effects of mass production techniques used during 1920

In ohio in 1872, the cleveland massacre was a)a violent labor dispute at standard oil refineries in cleveland. b)a takeover by standard oil of the refineries in cleveland. c)an attempt to stop standard oil from becoming a monopoly. d)a failed attempt by standard oil to take over other refineries.

World war 2 was caused, in part, by which of these factors?