Which of the Following Is a Source of Water Pollution

question 170

Multiple Choice

Which of the following is a source of water pollution in North America?

• A) mining operations
• B) industry
• C) municipal sewage
• D) industry and municipal sewage
• E) industry and municipal sewage, and mining operations

---

Definitions:

Gold Standard

historically refers to a monetary system where a country's currency value is directly linked to gold, but in a broader sense, it signifies the highest quality or benchmark measure.

Crowdsourcing

The method of acquiring ideas, services, or content by requesting contributions from a broad group of individuals, particularly from an online community.

Wikipedia

A free, multilingual online encyclopedia written and maintained by a community of volunteer contributors through a model of open collaboration.

Evidence-based Medicine

A clinical practice approach that emphasizes the use of current best evidence in making decisions about the care of individual patients.