NATURAL ENVIRONMENT 



33 



of all kinds in a town or city have to be disposed of. Homes are 

 now placed close together, or built one on top of another, as in 

 modern apartment buildings. Fields and trees, in fact most 

 aspects of country outdoor life, have virtually disappeared in a 

 large city. City-dwelling man has come to live in an artificial 

 environment. 



Care and improvement of the environment. Man can modify 

 or change his surroundings by making this artificial environment 

 favorable to live in. He can heat his dwellings in winter and cool 



Why do we call this an unfavorable natural environment ? 



Wright Pierce 



them in summer so as to maintain a moderate and nearly con- 

 stant temperature. He can have windows in his dwellings to 

 let light and air pass in and out. He can have light at night and 

 shade from intense light by day. He can have pure water in his 

 home, and drains or sewers to carry away his wastes. He can 

 plan parks and playgrounds so that the city people may have 

 breathing spaces, as do people in the smaller towns. He can see 

 to it that people ill with communicable diseases are isolated 01 

 quarantined from others. Best of all, he is slowly learning to con- 

 trol the tiny parasites, plant and animal, that cause and spread 



