How does groundwater cause erosion and deposition?

Data courtesy of the un development programme 2006-2008 and world bank 2009 the chart above compares measures of development using the hdi and gdp. why might turkey rank lower in the hdi indicator even though it has a high gdp?

Which of the following areas have the highest population density? a) quebecb) united statesc) californiad) new york city

Why does less erosion & more deposition take place on the outside bank of a meander?