Which of the following are examples of diffuse pollution? Check all that apply.

Question

_____  chemicals released from a factory waste pipe
_____  wind-borne debris blowing out to sea
_____  pet waste
_____  oil leaking from a cargo ship
_____  oil that washes off of roads

Clarify Question
· What is the key concept addressed by the question?
· What type of thinking is required?
 
Gather Content
· What do you already know about pollution?

  Choose Answer
· Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?

  Reflect on Process
· Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?

Answer 1

_____  chemicals released from a factory waste pipe
__X__  wind-borne debris blowing out to sea
__X__  pet waste
_____  oil leaking from a cargo ship
__X__  oil that washes off of roads

Clarify Question
· What is the key concept addressed by the question?
        o This question addresses pollution.
· What type of thinking is required?
        o This question is asking you to take what you already know and apply it to this unfamiliar situation.
 
Gather Content
· What do you already know about pollution?
        o Point-source pollution comes from an identifiable location—such as easily identified factories or other facilities that add pollutants at defined locations, such as an outfall pipe. Examples include sewage-treatment plants, which discharge treated effluents at specific spots on rivers.
        o Diffuse pollution is harder to identify and target for remediation. An example is eutrophication caused by excessive runoff of nitrates and phosphates from lawn and agricultural field fertilization.
        o Solutions to diffuse pollution often depend on public education and political action.

  Choose Answer
· Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?
        o Diffuse pollution does not have a single clear source. Instead, little bits of pollution are contributed from multiple people and areas.
        o Examples of diffuse pollution are: pet waste, oil runoff from roads, and bits of trash that blow out to sea.

  Reflect on Process
· Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
        o The question required you to take what you already know and apply it to this unfamiliar situation.
        o Did you recognize that diffuse pollution is caused by numerous small sources of contamination?