Match each geographic region with its significant characteristic. acute water shortages
highest population density
one-fifth the size of the country
vast plains covered with grasslands
Geographic Region
Characteristic
Mid-Atlantic
Subarctic and Arctic
>
West
Midwest

acuatic water storage =sub arctic and arctic

one fifth size of the country = west

highest population =mid west

vast plain covered with grassland = mid atlantic

answer; i believe the correct answer is (a) nigeria is the largest african crude (oil) supplier; /// so revenue from petroleum;