What is the effect of Mexico City's warm, sunny climate on its pollution problems?
A. There is faster dispersal of pollutants.
B. There is less risk for the spread of infections.
C. There are lower levels of air pollutants.
D. There is a decreased risk for parasites and vermin.
E. There is an increase in smog levels.
Answer: E
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Which of the following methods would keep an object cool even when it is exposed to direct sunlight?
A. Wrap it in aluminum foil with the shiny side facing inward. B. Wrap it in black paper. C. Wrap it in aluminum foil with the shiny side facing outward. D. Put it in a brown paper bag.
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Which of the following will the cause the rate of enzyme activity to first increase and then level off?
A) increasing the enzyme concentration B) increasing the substrate concentration C) increasing the temperature D) increasing the pH