As heat and pressure act upon petroleum, it finally becomes
A. tar.
B. oil.
C. natural gas.
D. coal.
Answer: C
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A(n) ________ is a solid aggregate of ________
A) crystal; rocks B) mineral; crystals C) rock; minerals D) element; crystals E) mineral; rocks
The area of maximum accessibility in an idealized city located on an isotropic surface is
A) the zone in transition. B) an edge city. C) the CBD. D) the upper-scale suburbs.
Describe the following weather conditions at 7:00 a.m. EST on November 9, 2011, in Springfield, Missouri (37° N, 93° W; an enlarged copy of the station model is shown here).
The following questions are based on the surface weather map shown below.
(a) Temperature: __________ °F
(b) Wind direction: ________________
(c) Pressure: __________ mb
(d) Pressure change over last 3 hours: __________ mb
(e) What explains this change in pressure?
(f) What explains the difference in temperature between Springfield and Nashville?
This variation in rotational velocity establishes the effect of the Coriolis force
Indicate whether the statement is true or false