Eutrophication
4 days ago
ekcanipe
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10 QuestionsShow answers
  • Question 1
    30 seconds
    Q.

    Which water quality indicator can be determined by measuring how light travels through water?

    answer choices

    turbidity

    temperature

    nutrient level

    dissolved oxygen

  • Question 2
    30 seconds
    Q.

    Which process would most likely increase the dissolved oxygen level in a freshwater lake?

    answer choices

    algae bloom

    lake turnover

    photosynthesis

    respiration

  • Question 3
    30 seconds
    Q.

    Which is the most likely result of an increase in the level of nitrates in a body of water?

    answer choices

    increase in turbidity

    increase in plant growth

    increase in fish population

    increase in water temperature

  • Question 4
    30 seconds
    Q.

    How are indicator species like a warning system for bodies of water?

    answer choices

    They indicate when food sources are declining.

    Their illness or death indicates pollution in an aquatic ecosystem.

    They indicate when predators are reducing the numbers of a species.

    Their illness or death indicates the body of water is becoming more populated.

  • Question 5
    30 seconds
    Q.

    Which is an accurate prediction of the pH of a lake that receives large amounts of acid rain?

    answer choices

    4-5

    6-7

    8-9

    10-11

  • Question 6
    30 seconds
    Q.

    Which would be the most likely cause of large numbers of fish dying in a stream?

    answer choices

    a lack of nitrogen

    high levels of mercury

    decreased carbon dioxide

    low dissolved oxygen concentration

  • Question 7
    30 seconds
    Q.

    After analyzing data collected from a pond, there is a significant decrease in dissolved oxygen. Which most likely caused the decline?

    answer choices

    an increase in minerals

    an increase in sediment

    an increase in algae growth

    an decrease in fish population

  • Question 8
    30 seconds
    Q.

    Why does a cloudy river produce less plant life than a clear river?

    answer choices

    A cloudy river flows freely, while a clear river does not.

    A cloudy river has few dissolved nutrients, while a clear river has many.

    A cloudy river absorbs little heat, while a clear river absorbs much heat.

    A cloudy river blocks sunlight from reaching plants, while a clear river allows sunlight to be absorbed by plants.

  • Question 9
    30 seconds
    Q.

    What does pH measure?

    answer choices

    acidity/alkalinity

    dissolved oxygen

    nutrient level

    turbidity

  • Question 10
    30 seconds
    Q.

    A new golf course is built next to a river. Over the past several months, the nitrate levels of the water in the river have been increasing. Which best explains the cause of the increasing nitrate levels?

    answer choices

    increased growth of algae

    decreased biodiversity

    runoff from fertilizer

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