A functional region is a. based on other people's views of an area and can overlap with other areas
b. where a service or function is performed
c. based on a node or focal point with a sphere of influence
d. has easy to define borders

The impact of a large asteroid comet with earth has been proposed to have caused the extinction of the dinosaurs. the impact site of this comet is in or near

Which of the following areas has the highest population density?

Which statement explains what upwelling causes? a. upwelling causes tides to rise and fall. b. upwelling causes changes in the direction of currents. c. upwelling causes nutrients, minerals, and tiny organisms to rise. d. upwelling causes currents in the pacific ocean to change direction. i think the answer is c.