Eutrophication Questions
a year ago
jeverhart
Save
Edit
Host a game
Live GameLive
Homework
Solo Practice
Practice
15 QuestionsShow answers
  • Question 1
    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

  • Question 2
    30 seconds
    Q.

    What does pH measure?

    answer choices

    acidity/alkalinity

    dissolved oxygen

    nutrient level

    turbidity

  • 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.

    Which would most likely happen if too many nutrients entered an estuary?

    answer choices

    Nutrients would be used up by the fish and plants, keeping the estuary in balance.

    Algal blooms would lower dissolved oxygen levels, causing fish to suffocate.

    Algal blooms would decrease, leaving few food resources for fish.

    Nutrients would sink to the bottom, increasing soil deposition.

  • Question 5
    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 6
    30 seconds
    Q.

    Why does fertilizer pollution stimulate the growth of algae in a pond?

    answer choices

    Algae are producers and use the fertilizer’s nutrients to rapidly multiply.

    Algae are producers and use the fertilizer’s nutrients during decomposition.

    Algae are parasites and absorb energy from the fertilizers in order to grow.

    Algae are herbivores that feed off of the plants, which grow due to the excess fertilizers.

  • Question 7
    30 seconds
    Q.

    Why should farmers be concerned about unused nitrates contaminating surface water and groundwater supplies?

    answer choices

    Unused nitrates reduce algae growth.

    Unused nitrates increase oxygen in the water.

    Excessive amounts of nutrients cause overpopulation of fish.

    Excessive amounts of nutrients speed up the eutrophication process.

  • Question 8
    30 seconds
    Q.

    If a body of water has high turbidity levels, what can most likely be concluded?

    answer choices

    It has a low pH.

    It is unsafe to drink.

    It is too hot to drink

    It contains a lot of chemicals.

  • Question 9
    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 10
    30 seconds
    Q.

    Which is the most likely effect of too much nitrogen and phosphorus flowing into a lake?

    answer choices

    algal blooms

    greater salinity

    decreased turbidity

    lower temperature

  • Question 11
    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 12
    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 13
    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 14
    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 15
    30 seconds
    Q.

    Which will most likely happen to a biological indicator species if there is a sudden increase in pollution?

    answer choices

    There will be a significant increase in the population numbers and the quality of the individuals.

    There will be a significant decrease in the population numbers and the quality of the individuals.

    The biological indicator species will reproduce at lower rates, which will maintain population numbers.

    The biological indicator species will reproduce at higher rates, which will maintain population numbers

Report Quiz
Join a game