A formal region is based upon a central cultural node
common or shared perceptions about a region
physical boundaries
the characteristics that dominate the region
a state's definition of region

Iknow what you are working on the correct answer is c

El nino is a weather phenomenon caused when warm water from the western pacific ocean flows eastward. part1baan average of 7.7 hurricanes and 3.6 major hurricanes compares to 5 hurricanes and 1.5 major hurricanes from 1995-2005

Answer// dinosaurs emerged during mesozoic era;