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1 | |
The primary reason for using labor intensive farming in the developing world is because the land is too steep to farm using mechanized agricultural techniques. |
| | A) | True |
| | B) | False |
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2 | |
Which of the following is not characteristic of the Green Revolution? |
| | A) | mechanized agriculture |
| | B) | hybrid seeds |
| | C) | slash and burn |
| | D) | monoculture |
| | E) | all of the above are characteristic of the Green Revolution |
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3 | |
The use of fertilizer worldwide has leveled off and even declined over the last few years as more and more North Americans are leaving farming and moving to the cities. |
| | A) | True |
| | B) | False |
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4 | |
The three primary soil macronutrients are |
| | A) | carbon, oxygen, and water. |
| | B) | copper, cadmium, and carbon. |
| | C) | potassium, phosphorus, and nitrogen. |
| | D) | boron, zinc, and manganese. |
| | E) | none of the above. |
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5 | |
Total dependency on fertilizers usually reduces the amount of organic matter in the soil and can also change the physical, chemical, and biotic properties of the soil. |
| | A) | True |
| | B) | False |
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6 | |
Which of the following is not a class of insecticide? |
| | A) | carbamates |
| | B) | auxins |
| | C) | chlorinated hydrocarbons |
| | D) | organophosphates |
| | E) | all of the above are examples of insecticides |
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7 | |
DDT is a good example of a persistent pesticide. |
| | A) | True |
| | B) | False |
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8 | |
The most widely used pesticides are herbicides. |
| | A) | True |
| | B) | False |
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9 | |
The process of accumulating higher and higher amounts of a toxic material such as PCBs within the body of any animal is called |
| | A) | bioaccumulation. |
| | B) | biological amplification. |
| | C) | biological half-life. |
| | D) | biological persistence. |
| | E) | none of the above. |
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10 | |
The effect of DDT on eagle eggshells illustrates the concept of biological amplification. |
| | A) | True |
| | B) | False |
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11 | |
The number of pesticide resistant insect species has grown from nearly zero in 1940 to 500 in 1990 because pesticide use has selected for genes that give resistance. |
| | A) | True |
| | B) | False |
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12 | |
Conventional, mechanized farming practices have which negative effects on the soil and water? |
| | A) | soil compaction |
| | B) | reduction in soil organic matter |
| | C) | soil erosion |
| | D) | leaching of pesticides and fertilizers into the groundwater |
| | E) | all of the above |
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13 | |
The use of one organism, like Bacillus thuringiensis to control moths, is an example of one way to use integrated pest management. |
| | A) | True |
| | B) | False |
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2002 McGraw-Hill Higher Education