In the world map below the color that represents soils that swell and shrink excessively is
A) pink.
B) light green.
C) medium blue.
D) purple.
D) purple.
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Why might disposing of a lead-acid battery, nickel-cadmium battery, or mercury battery in a landfill be a bad thing?
A. Cadmium, mercury, and lead are all very reactive and generate highly unstable compounds. B. Cadmium, mercury, and lead are all radioactive and release radiation. C. Cadmium, mercury, and lead are all toxic metals and could leak out of the landfill. D. all of the above E. none of the above
Tsunami can take several hours to cross the ocean because
A) they move slowly B) they are so high that wind impedes their progress C) the travel distances are great D) the ocean is too deep to transmit the waves
The fundamental principle governing international aviation is
A) states have sovereign control over their own air space. B) an international treaty of the United Nations. C) provide air service at the lowest possible price. D) develop the quickest air service possible. E) the Kyoto Protocol.
Which of the following gives the correct order for the wavelengths of portions of the electromagnetic spectrum?
A) radio > infrared > ultraviolet B) radio > ultraviolet > infrared C) ultraviolet > infrared > radio D) ultraviolet > radio > infrared