This compound or group of compounds is primarily responsible for the yellow to reddish-brown color of Los Angeles smog
A) carbon monoxide
B) sulfur dioxide
C) volatile organic compounds
D) nitrogen dioxide
Answer: D
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The mass extinction in the geologic record, which proved to be the most devastating to life on Earth, occurred at the
end of the ____. a. Cambrian b. Cretaceous c. Devonian d. Ordovician e. Permian
Shifting agriculture (slash-and-burn agriculture)
A. relies on one or two primary crops. B. is commonly practiced in grasslands. C. increases the fertility of the soil for several years. D. involves temporarily removing a small portion of a forest.
Religions differ in their attitudes towards ________, which are often reflected in national laws
Fill in the blank(s) with the appropriate word(s).
________ is the relative long-distance movement from one region of a country to another
A) Interregional migration B) Intraregional migration C) Forced migration D) Regional mobility E) International mobility