Identify and explain 2 reasons food deserts exist in urban areas within developed countries

Is the weather changing? consider the data of severe weather that includes tornadoes occurring throughout the u. s. over the last four years. compare the severe weather for the last three years. then compare the first three months of 2017 with that data. based on previous years, what might the prediction be for weather during 2017?

In 1819, what did the united states obtain from spain for $5 million?

How did enlightened thinkers believe government regulation affected the growth of wealth and trade