Compared to the wavelength of radio waves, a chain-link surface is
A. between smooth and rough.
B. rough.
C. a non-reflector for all wavelengths.
D. smooth.
Answer: D
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Two-thirds of all mercury reaching the atmosphere every year comes from.
A. volcanoes B. rocks and soil. C. toxicology studies. D. industrial facilities. E. methyl mercury.
While in South America, you discover a fossil with a prehensile tail and flat face. Which type of primate is this fossil
most likely to be? a. New World monkey b. Ceropithecoidea c. Old World monkey d. prosimian e. hominoid
Before the Europeans established colonies in Africa, Asia, and Latin America, most people there:
A) lived in rural settlements B) lived along mountain slopes C) lived in large cities D) lived on the western side of towns E) divided their time between living in the city and living in rural areas
Which of the following organisms has a feeding pattern most similar to a bald eagle?
a. hummingbird b. vulture c. pelican d. woodpecker