Vegetation and population

A lot of people live in Boston.  Many large cities are located along the coast.

There are a  lot of trees by the Appalachian Mountains.   

The Northeast has a high population.  There are a lot of people living in the Northeast.  

The Northeast has a lot of forests because it is close to the ocean and gets a lot of rainfall.

There are a lot of people in the Northeast.  Many suburbs have grown around the cities.

The Northeast is mostly covered by mountains and trees.