After most of the iron in the ocean was trapped in banded iron began dispersing into the atmosphere.

Reading graphs: unemployment us unemployment rate (1961-2011) identify the trends in the graph and then use the drop- down menu to complete each statement from 1961 to 1965 unemployment was in the mid-2000s through 2011. unemployment was percentage unemployed 1961 1971 1981 1991 2001 2011 year

In the figure, polygon abcd is transformed to create polygon a′b′c′d′. this transformation is a by a factor of .

All of the following occurred due to the invention of the railroad except