How many countries in the world? a. 170b. 153c. 195d. 200

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

What would be the distance of all the planets to the sun in astronomical units?

Based on current rates the earths human population is expected to grow how much by 2050