What Is the Approximate Amount of Exposure to Radiation for a Person

question 56

Multiple Choice

What is the approximate amount of exposure to radiation for a person living in the United States that is thought to be due to background radiation?

• A) 25% of the typical exposure
• B) 50% of the typical exposure
• C) 75% of the typical exposure
• D) 100% of the typical exposure
• E) None of the exposure is from background radiation.

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Definitions:

Fibroblasts

A type of cell found in connective tissue, which produces collagen and other fibers that are essential for tissue repair and maintenance.

Ground Substance

The amorphous, gel-like substance surrounding cells and fibers within the extracellular matrix of connective tissue.

Connective Tissue

A group of tissues in the body that maintain the form of the body and its organs and provide cohesion and internal support.

Fibers

Long, thin strands of material, either natural or man-made, that can be woven into textiles or used in other manufacturing processes.