high crop yields per farm worker. 
____________________________________
*100% CORRECT ANSWERS  
Question 1 
Soil color only reflects the amount of organic matter present in the soil 
False 
Question 2 
Soil compaction can result in increased flooding in an area 
 True 
 Question 3 
Which of the following is NOT a defining characteristic of soil? 
humidity 
 Question 4 
Why might soils rich in organic matter NOT be fertile? 
 Soil fertility comes from a balance of organic matter AND other mineral 
nutrients
 Question 5 
What characteristic is shared by both inceptisols and entisols, the soils of floodplains? 
 Both are young and only beginning to develop horizons and a soil profile 
 Question 6 
The high productivity of American agriculture is exemplified by 
 high crop yields per farm worker. 
 Question 7 
Pastoral farming is best described as 
 a method of raising livestock and moving herds. 
 Question 8 
How does flooding rice fields reduce the need for herbicides and pesticides in rice farming? 
 While rice has a submerged growth state, most weeds and pests do not 
 Question 9 
Which of the following is NOT true concerning tropical plantations? 
 Wheat and corn are common products of tropical plantations 
 Question 10 
Why is Dutch agriculture critically dependant on technology? Choose TWO (2) answers! 
 1. The Dutch have a cold climate, so they have to find inventive ways to grow food.  
2. Dutch agriculture is characterized by plant production in greenhouses. 
 Question 11 
Which of the following best explains how trees help conserve energy and reduce pollution in cities? 
All of these 
 Question 12 
Which of the following organisms is most harmful to the tree it grows on? 
 Strangler fig 
 Question 13 
Which of the following statements about the interactions between insects and trees is NOT true 
 Most insects have predatory relationships with trees, rather than mutually beneficial ones 
 Question 14 
Why are environmentalists concerned about the introduction of genetically engineered trees? 
 Genetically engineered trees could have unexpected interactions with organisms in natural ecosystems. 
 Question 15 
Which of the following is released by trees into the atmosphere? 
 oxygen