Take This Challenging Environmental Science Quiz

18 Questions | Total Attempts: 81

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Take This Challenging Environmental Science Quiz - Quiz

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Questions and Answers
  • 1. 
    All of the following are true about subsidies for food production except
    • A. 

      Subsidies in developed countries average $533,000 per minute

    • B. 

      Milk production quadrupled in new zealand after farm subsidies were ended

    • C. 

      Food prices in developed countries are kept artificially low

    • D. 

      Developing countries also receive large amounts of subsidies for growing food

    • E. 

      All of these statements are true

  • 2. 
    Food security can be improved by
    • A. 

      Creating programs to reduce poverty and chronic malnutrition

    • B. 

      Relying more on locally grown food

    • C. 

      Cutting down on food waste

    • D. 

      All of these answers are correct

    • E. 

      Relying more on locally grown food and cutting down on food waste

  • 3. 
    Soil in the united states is eroding about ___ times faster than it can form
    • A. 

      2

    • B. 

      4

    • C. 

      8

    • D. 

      17

    • E. 

      22

  • 4. 
    Which of the following is central to most of the efforts to conserve topsoil
    • A. 

      An emphasis on ag practices that enhance monocultures

    • B. 

      Annual crop rotations

    • C. 

      Keeping the soil covered by vegetation

    • D. 

      Preventing insect pests from destroying valuable crops

    • E. 

      Conversion of croplands into pasturelands or feedlots

  • 5. 
    Conservation tillage
    • A. 

      Increased labor costs

    • B. 

      Increases erosion

    • C. 

      Increases energy consumption

    • D. 

      Accelerates water loss from the soil

    • E. 

      Decreases erosion

  • 6. 
    In alley cropping:
    • A. 

      Crops are planted between hedgerows of trees or shrubs that are used for fruits of fuelwood

    • B. 

      Terraces are built to prevent swift water runoff

    • C. 

      Plowing runs across slopes

    • D. 

      Special tillers are used so the topsoil is not disturbed

    • E. 

      A row of crops alternates in strips with another row of crops

  • 7. 
    Which of the following is not one of the three major types of organic fertilizer?
    • A. 

      Green manure

    • B. 

      Sewage sludge

    • C. 

      Compost

    • D. 

      Animal manure

    • E. 

      All of these answers

  • 8. 
    The process least likely to conserve soil nutrients is 
    • A. 

      Crop rotation

    • B. 

      Fertilizing with compost

    • C. 

      Fertilizing with green manure

    • D. 

      Fertilizing with animal manure

    • E. 

      Irrigation

  • 9. 
    Aquaculture would be more sustainable if
    • A. 

      Consumers chose to eat fish species that are primary consumers instead of secondary consumers

    • B. 

      Consumers chose to eat top predators

    • C. 

      Fish farms were located near mangrove forests

    • D. 

      Fist farms were located near estuaries

    • E. 

      Chemical pesticides were used to control common fish diseases

  • 10. 
    Which of the follwing is a characteristic of a polyaquaculture?
    • A. 

      Only herbivorous fish are raised

    • B. 

      Only carnivorous fish are raised

    • C. 

      Fish are shrimp are raised in ponds along with algae, seaweed, and shellfish

    • D. 

      Fish are raised in estuaries where the flushing action of rivers keeps the wastes moving away from the fish

    • E. 

      None of these answers

  • 11. 
    Which choice reflects the correct sequence of animal efficiency at converting grain into protein, from the most efficient animal to the least?
    • A. 

      Fish, chicken, pigs, beef cattle

    • B. 

      Chicken, fish, beef cattle, pigs

    • C. 

      Pigs, chicken, fish, beef cattle

    • D. 

      Beef cattle, fish, chicken, pigs

    • E. 

      These animals are all equally efficient at converting grain into protein

  • 12. 
    The largest contributor to the ecological foot print of most individuals in affluent nations is 
    • A. 

      Recreational hunting and fishing

    • B. 

      Vacations via air travel

    • C. 

      Residential heating

    • D. 

      Meat production and consumption

    • E. 

      Purchasing more clothing and accessories than are needed

  • 13. 
    Sustainable ag is characterized by all of the following except
    • A. 

      Soil salinization

    • B. 

      Crop rotation

    • C. 

      Soil conservation

    • D. 

      Integrated pest management

    • E. 

      Promoting polyculture practices

  • 14. 
    Sustainable ag
    • A. 

      Uses pesticides

    • B. 

      Minimizes soil erosion

    • C. 

      Requires high inputs of fossil fuel

    • D. 

      Relies mainly on chemical fertilizers

    • E. 

      Wastes water

  • 15. 
    In order to switch to sustainable ag, which of the following practives would not be favorable?
    • A. 

      Give subsidies and tax breaks to those that use the method

    • B. 

      Shift to full-cost pricing

    • C. 

      Increase government support of research on sustainable agriculture

    • D. 

      Expand the use of the crops of the green revolution

    • E. 

      Discourage monocultures

  • 16. 
    The term locavore refers to
    • A. 

      The eating habits of people who love to eat

    • B. 

      People who participate in CSAs and commit to buying locally grown food

    • C. 

      Growing food in partially used parking lots

    • D. 

      Backyard gardeners

    • E. 

      Storytellers who relate historical information to their communities

  • 17. 
    Which of the following are ways that individuals can support sustainable agriculture through their choices and behaviors?
    • A. 

      Waste less food

    • B. 

      Eat locally grown food

    • C. 

      Eat less meat

    • D. 

      Compost food wastes

    • E. 

      All of these answers

  • 18. 
    Compared to conventional tillage, conservation tillage
    • A. 

      Reduces fuel and tillage costs

    • B. 

      Accelerates water loss from the soil

    • C. 

      Causes soil compaction

    • D. 

      Requires increased use of herbicides

    • E. 

      All of these answers

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