What is the chemical formula for the following structure?
A. C6H9
B. C7H11
C. C6H10
D. C7H12
Answer: D
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Which of the following cities of Central Asia is largely a Soviet creation?
A) Astana, Kazakhstan B) Kabul, Afghanistan C) Baku, Azerbaijan D) Tashkent, Uzbekistan E) Ulaanbaatar, Mongolia
Of the following gases, this one has the least effect on weather and climate
A) nitrogen. B) carbon dioxide. C) ozone. D) water vapor. E) chlorofluorocarbons.
The short residence time of water in the atmosphere allows a water molecule to have a stronger ability to do which of the following, compared to a situation if the residence time in the atmosphere were larger?
A. acquire potential energy and convert it to kinetic energy B. store and release latent heat C. participate in the hydrologic cycle D. erode the surface E. All of these.
If one were to say a service tends to be income elastic, this means that as incomes rise, demand for a service tends to rise
Indicate whether the statement is true or false