In 1990, what was the population density near chicago?
a.
6 or fewer people per square mile
b.
18-45 people per square mile
c.
45-90 people per square mile
d.
90 or more people per square mile

Answerair masses develop near the equator are warm; tropical air mass

Historians are researchers of the past or people who understand the history of people. with this field, they must possess qualities such as being unbiased, patient, efficient reader, has a knack for logic and critical thinking and reasoning, disciplined, open-minded, resourceful, with good analytical ability, good reasoning skills and problem solving!

Hey there  jaylajakara15p8gvfy! question:   approximately what per cent of russia is used for permanent cropland? answer: b) 10%hope this ! -jayden