What is major factor in the poor air quality in Mexico City and Santiago?
A) thermal inversion layers
B) suburban train systems
C) the large number of parks
D) high-emission buses
E) conversion of major boulevards to bike paths
A) thermal inversion layers
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A constant net force on a moving van produces a constant
A. acceleration. B. velocity. C. both of these D. neither of these
The earth's axis of rotation is tilted roughly this number of degrees away from a line perpendicular to the plane of the earth's orbit:
A) 5.3. B) 11.2. C) 23.5. D) 90.
Which of the following represents an abiotic component of a forest community?
A) The oak and hickory trees B) The mushrooms growing on and around rotting logs C) Water trickling in a small stream D) Bacteria in the soil
List three factors that contribute to the differential heating of land and water
What will be an ideal response?