________ is one way to explain how services are distributed and why a regular pattern of settlements exists, at least in developed countries such as the United States

A) The von Thünen model
B) The concentric model
C) Central place theory
D) The sector model
E) The distance tolerance model


Answer: C

Environmental & Atmospheric Sciences

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The airspeed of light aircraft is normally 200 km/h, but when it is caught in a 200-km/h crosswind, its airspeed becomes

A. 283 km/h. B. 0 km/h. C. 400 km/h. D. 200 km/h.

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What is the parcel’s initial SH?

Take a parcel of air from the Bay of Bengal in the Indian Ocean up to Cherrapunji at 1500 m (4900 ft). Assume that its temperature is 30°C and has 90% RH at 0 m (0 ft) over the Bay of Bengal. What will be an ideal response?

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Tar sand deposits are examples of ________

A) clean coal systems B) peak oil C) liquefied natural gas D) unconventional oil reservoirs E) conventional oil reservoirs

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All of the following are considered indoor air pollutants except ________

A) sodium chloride B) pesticides C) asbestos D) cigarette smoke E) radon

Environmental & Atmospheric Sciences