What factor determines the composition of magma?

a. amount of fractional crystallization and the composition of the parent rock

b. plate tectonic setting of the volcano

c. composition of the parent rock and the amount of partial melting it underwent

What were some responses to the montserrat, soufriere hills eruption in 1997

Amountain is larger than a hill, with steep sides true or false

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