How Is the Wildcard Character "?" Used

question 94

Essay

How is the wildcard character "?" used?

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Definitions:

Safe Drinking Water Act

A federal law in the United States aimed at ensuring the quality of Americans' drinking water by regulating its sources and contaminants.

Drinking Water Standards

Regulations determining the minimum quality of water provided for human consumption to ensure it is safe and free from contaminants.

Clean Water Act

U.S. federal law established to regulate pollutant discharges into the waters of the United States and to set water quality standards.

Toxic Chemicals

Substances that can cause harm to humans, animals, plants, or the environment when they are released or their concentration exceeds certain levels.