6. The actual shape of Earth's orbit around the Sun is best described as
1. a very eccentric ellipse
2. a slightly eccentric ellipse
3. an oblate sphere
4. a perfect circle

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

Which of the following is defined as combinations of soil particles that vary in size and shape?

How does central place theory explain patterns in the size and distribution of cities?