Chapter 8: Agricultural Damage from Air Pollution
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Chapter 8: Agricultural Damage from Air Pollution

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Questions and Answers

Which air pollutant was estimated to cause losses to producers ranging from $1 billion to $5 billion in 1986?

  • PAN
  • NO2
  • O3 (correct)
  • Fluoride

    • Which of the following is NOT a symptom of plant growth changes caused by acid rain?

  • Excessive fruit production (correct)
  • Early senescence of leaves
  • Lack of vigor
  • Stunted growth

    • What environmental issue has caused dramatic declines in amphibian populations since 1991?

  • Multiple factors including infections and synthetic compounds (correct)
  • Natural population cycles
  • Introduction of exotic predator species only
  • Habitat destruction only
  • Climate change only

    • What industrial facilities emit gaseous and particulate air pollutants?

    <p>Phosphate fertilizer manufacturing plants</p> Signup and view all the answers

    What is a widely known example of agricultural damage caused by air pollution?

    <p>Destruction of grasslands by acid rain</p> Signup and view all the answers

    What is necrosis in plants characterized by?

    <p>Brownish or black discoloration</p> Signup and view all the answers

    What is the estimated annual death toll of waterfowls in the U.S. due to ingesting lead pellets?

    <p>More than one million</p> Signup and view all the answers

    What is the major factor that makes assessing economic effects of air pollution on agriculture difficult?

    <p>The multiple variables involved</p> Signup and view all the answers

    What is the term used to describe the fading of natural green color, or yellowing, of plant leaves due to air pollution?

    <p>Chlorosis</p> Signup and view all the answers

    What is one suspected factor contributing to the injuries of sea mammals due to water pollution?

    <p>Damaged immune systems from waterborne toxicants</p> Signup and view all the answers

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