4.6 Pesticides & Fertilizers*

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4.6 Pesticides & Fertilizers*

Environmental Science Unit 4: Land Use & Human Impact 4. 4 I can explain the benefits and environmental impacts of pesticide and fertilizer use.


Questions and Answers
  • 1. 
    Farmers use pesticides because they
    • A. 

      Add nutrients, like nitrogen and phosphorus, to the soil.

    • B. 

      Provide a rich water supply to the crops.

    • C. 

      Kill unwanted bugs and weeds that destroy their crops.

  • 2. 
    Farmers use fertilizers because they
    • A. 

      Add nutrients, like nitrogen and phosphorus, to the soil.

    • B. 

      Kill unwanted bugs and plants that can harm their crops.

  • 3. 
    Which of the following is NOT a negative consequence of chemical pesticide use?
    • A. 

      They can pollute waterways.

    • B. 

      They can threaten human health.

    • C. 

      They can pollute the air.

  • 4. 
    Which of the following statements about fertilizers is NOT true?
    • A. 

      The use of chemical fertilizers has increased soil fertility and increased crop yields.

    • B. 

      Using too much fertilizer can pollute waterways and lead to algae-blooms.

    • C. 

      The use of fertilizer builds up resistance in harmful pests.

  • 5. 
    Which of the following best explain why spraying pests with large amounts of pesticides becomes ineffective over time?
    • A. 

      The chemicals in pesticides lose their effectiveness after they leave the pesticide factory.

    • B. 

      Pests learn to avoid plants with pesticide on them.

    • C. 

      Pests with a natural resistance to the pesticide survive and reproduce, producing more resistant pests in the next generation.