The subtropical high pressure regions are centered at approximately ____ degrees north and south latitude
a. 5
b. 30
c. 45
d. 60
b
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Why might increasing the temperature alter the rate of a chemical reaction?
A. The density decreases as a function of temperature and this leads to an increase in volume which drops the rate of reaction. B. The molecules are less reactive at higher temperatures. C. The molecules will more likely combine with other atoms at high temperature to save space. D. The molecules will have a higher kinetic energy and bump into one another harder. E. none of the above
Which term describes the capacity of the earth's natural systems to sustain life and the ability of human economic systems to survive or adapt indefinitely as environmental conditions change?
A. Appropriate use of resources B. Ecological management C. Sustainability D. Preservationism E. Environmentalism
Instructions: Choose one answer from each pair of selections. If you use liquid-in-glass thermometers to record temperatures below -50°C, you will need one that uses ALCOHOL | MERCURY as a liquid
Which of the following is not true regarding slope failures involving snow?
A. They may be very slow or very fast. B. The density of snow is always the same and so can be ignored when studying avalanches. C. They may be understood using the same mass-movement principles that apply to earth and rock movements. D. They may creep, flow, slide, and fall. E. They may travel from only a few meters (or less) to several kilometers.