WATER CONDENSING HIGH IN THE AIR 



37 



FIG. 26. The black dots on the arrows represent air laden with moisture. 

 Arrows without dots represent air comparatively free from moisture. 



QUESTIONS 



1. Why is the air coming in from over the ocean full of 

 moisture? 



2. Why will clouds form as air from the ocean rushes up the side 

 of a mountain? 



3. Why do rain and snow fall on the side of the mountain? 



4. Why is the air so dry on the side of the mountain away from 

 the ocean? 



5. Why is the rainfall greater on the ocean side of the mountain 

 than on the plains behind the mountain? 



6. Examine the relief map of the United States, and explain 

 how different parts of. the country get various amounts of rain. 



7. Account for the great American Desert. 



8. What is meant by " the sun is drawing water "? 



9. What is meant by " The clouds are breaking away "? 



10. What effects are produced by the temperature of the air 3 

 or 4 miles above the earth? 



11. What facts do you consider most important in this chapter? 



