48 VERTICAL FARMING 



QUESTIONS 



1. Are the changes due to the rotting of a plant or animal under 



water the same as rotting in the air ? 



2. What are the most noticeable differences you have detected 



in the two kinds of rotting? 



3. What are five beneficial effects of bacteria on the farm? 



4. What are five harmful effects of bacteria on the farm? 



5. How would you prepare a bottom having a cold, wet subsoil, 



and drained by a deep open ditch, for growing ordinary 

 field crops ? 



6. How would you prepare a tight hillside subsoil, low in lime, 



for growing alfalfa? 



