1. Pacific Northwest Weather and Climate

2. The troposphere is the place in the atmosphere where our weather occurs

3. Which of the following statements about the graph are true. 1
Which of the following statements about the graph are true?   1. Air pressure is _______ at lower altitudes. 2. Air density is ________ at lower altitudes. 3. There is ______space between air molecules at higher altitudes There is ____oxygen to breathe at the top of a high mountain than there is at sea level.    

4. 5. If you follow the temperature line in the graph, moving to your left represents a ____________ in temperature and to your right represents an ____________ in temperature. 6. Temperature __________ as you gain altitude in the Stratosphere and the Thermosphere. 7. Temperature ____________ as you gain altitude in the troposphere and mesosphere

5. As you climb a mountain, you can expect the air temperature to decrease by 6.5 degrees C for every 1000 meters you gain.
This is called the standard (average) lapse rate.
8. What would be the temperature at 4,000 meters?

6. 9. Name at least one reason for this temperature trend.

7. 10. Name at least one reason for this trend in precipitation.