What is the most typically used measure of a country's level of development?

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

Air masses are characterized by various properties including temperature humidity air pressure and wind speed. which of the following air masses is associated with low relative humidity and high air temperature ?

When you cross a time zone going east, what happens to the time