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

What forms when lava flows vertically through a layer of rock?

Which issues led to the political revolts in South America

The adjustments of materials that follow a major earthquake often generate smaller earthquake?

Which type of map is this? Political Map of China Russia Mongolia a political map a physical map a special-purpose map a population-distribution map 45'N 545'N -30'N Nepal North Korea South China Korea Japan Shanghai 30'N Chongqing Taipei Bangladesh

The Earth orbits a star called the

1. Why is the "greenhouse effect" important for life on the earth? A It keeps the sun's heat and light equal. B It keeps the earth's air and water warm. OC It protects the earth from solar radiation. D It determines the position of the earth. nd Use

Which of these is caused by a chemical change? A) The honey in a jar crystallizes and will no longer pour. B) The skin of a banana turns from green to yellow as it ripens. C) A box of powdered brown sugar turns into a solid brick over time.

What geographic and weather features affect plant and animal life

Which realm contains the world's largest population?

Describe why a "permanent underclass" has developed in many cities, and the problems that result.