Fully ________% of the U.S. and Canadian populations were classified as urban in the first decade of the twenty-first century

A) 50
B) 68
C) 72
D) 80


D

Environmental & Atmospheric Sciences

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Explain the factors that contribute to the region's high population growth rates and rapid urbanization

What will be an ideal response?

Environmental & Atmospheric Sciences

Which of the following represents a physical change?

A) stretching a silver wire B) tarnishing of silver C) both a and b D) neither a nor b

Environmental & Atmospheric Sciences

Three dimensional effects are best obtained with ________.

A. Thermal scanners B. Ultraviolet photographs C. Color infrared photography D. Vertical aerial photographs E. None of the above

Environmental & Atmospheric Sciences

Tree-ring dating, or dendrochronology, is a relative dating method

a. True b. False

Environmental & Atmospheric Sciences