If a geographer wanted to use a geographic information system (GIS) to study soil contamination and determined that only the areas within 1.5 kilometers of a toxic waste dump needed to be considered and mapped, he/she would be most likely to choose which type of GIS function?
A. area calculation
B. buffering
C. kriging
D. point-pattern analysis
Answer: B
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Which of these activities is the most dangerous to your health?
A. being poor in Nigeria B. driving a car in Australia C. working outside in a city with bad air pollution like Los Angeles D. smoking cigarettes in Canada
Explain why the middle parts of clouds have so few ice crystals despite temperatures there that are well below freezing.
What will be an ideal response?
Alpine glaciers include all of the following except a(n)
A) piedmont glacier. B) ice cap. C) valley glacier. D) cirque glacier. E) tidewater glacier.
Which of the following is NOT responsible for the urban heating effect?
A) Increase in human-made materials that conduct more energy than natural surfaces. B) Increased albedo of urban environments relative to that of natural landscapes. C) The concentration of people, machines and heat generating devices adds more heat to the environment. D) Increased air pollution that absorbs and reradiates heat to surface. E) Heat generated by homes, vehicles, and factories.