The Use of Fluorine in Public Tap Water to Reduce

question 17

Multiple Choice

The use of fluorine in public tap water to reduce cavities is an example of a

• A)Negative externality
• B)Positive externality
• C)Public good
• D)Private good

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Definitions:

Actin

A protein that forms filaments and is essential for muscle contraction and cell movement.

Motor Proteins

Proteins that convert chemical energy into mechanical work, moving along surface of cellular structures and are crucial for muscle contraction, intracellular transport, and cell division.

Metastasis

The process in which malignant cells spread from one part of the body to another. See cancer.

Malignant Cells

Abnormal cells that divide uncontrollably and have the potential to invade and spread to other parts of the body, leading to cancer.