## Questions

1. For how many hours did the CO level equal or exceed the recommended maximum level...

 In Denver? ______________ In Boulder? ______________

2. What are the maximum and minimum wind speeds for Denver?

 Maximum = ___________________ Minimum = ___________________

3. What are the maximum and minimum wind speeds for Boulder?

 Maximum = ___________________ Minimum = ___________________

4. What is the range (subtract the minimum from the maximum) for the wind speed...

 In Denver? ______________ In Boulder? ______________

5. From what direction did the wind blow most often...

 In Denver? ______________ In Boulder? ______________

6. What relationship is there between CO level and wind speed...

 For Denver? ______________ For Boulder? ______________

7. At what time of the day was the CO maximum...

 For Denver? ______________

Why is this unusual? (Hint: New Year's Day)

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8. Using a dashed line (-----------), draw a curve on the Denver graph (Figure 8.1) that would illustrate the CO level on a typical work day.

9.  As shown in the diagram to the right, the city of Denver is located in the South Platte River Valley. Near Denver, the South Platte River flows roughly from south-southwest to north- northeast. Boulder Creek, approximately 30 miles north of Denver, flows out of the mountains and through Boulder roughly from west to east. To the west of both cities are the foothills of the Rocky Mountains. How does the topography affect the wind direction in both locations?

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