Smog begins to develop in the morning because
A. power plants begin operation for the day.
B. the sun comes up.
C. people turn on lights in their homes.
D. people drive their cars to work.
Answer: D
You might also like to view...
The greatest temperature ranges in the region, due to the effect of continentality, are experienced in:
A. Estonia. B. Siberia. C. Armenia. D. the Volga Basin.
Compared to the lithosphere, the asthenosphere is ____
a. ?cooler and more rigid b. ?cooler and more plastic c. ?hotter and more rigid d. ?the same temperature and rigidity e. ?hotter and more plastic
Russians form the second largest ethnic group in each of the following countries except:
A) Georgia B) Belarus C) Azerbaijan D) Ukraine
The most important factor influencing vegetation patterns in the Rocky Mountain Region is what?
A) The distribution of precipitation B) Differences in elevation C) Animal habitation D) Planting patterns of indigenous groups