WEATHER; WINDS AND STORMS; CLIMATE 119 



The history of people who lived in Asia Minor, Greece, 

 and Italy twenty-five hundred years ago shows us that the 

 same native fruits, grains, and trees grew there then as now; 

 that the country people lived in the same kind of dwellings 

 and wore the same amount of clothing as to-day; and that 

 they raised flocks and herds of the same domestic animals 

 as are raised now. It is evident that the climate of that 

 part of the world has not changed materially in over two 

 thousand years. It is not likely, then, that the climate on 

 our continent has changed within a lifetime. 



EXERCISES 



1. A pitcher of ice water at a temperature ,of 40 becomes covered 

 with dew on a day when the relative humidity is 75 per cent. Explain 

 why the same effect is not produced with water at 60. 



2. An area in Kansas has, on a given day, a barometric pressure 

 averaging 30.2 in.; another area has a pressure of 29 in. State the 

 direction of air movement between these regions and explain. 



3. Two other regions have pressures of 31 and 29 in. respectively. 

 Compare the velocity of wind with that in the case of Ex. 2. 



4. Why does sprinkling the streets and sidewalks cool the air? 



5. Describe the weather of yesterday. 



6. Describe the climate of the state you live in. 



7. Name a distant state or country, in about the s.ame latitude as 

 yours, which has a climate differing in any respects from your local 

 climate. Tell what you think is the reason for the difference. 



8. In what ways does climate influence pepple as regards dwellings, 

 food, occupations, and material for clothing? 



