The Following Is a List of Five of the World's

question 12

Multiple Choice

The following is a list of five of the world's busiest airports by passenger traffic for 2010. The percentage of passenger traffic in the five busiest airports that occurred in Asia is the closest to ___________.

• A) 18%
• B) 21%
• C) 25%
• D) 38%

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Definitions:

Radiology

A medical specialty that uses imaging techniques such as X-rays, CT scans, and MRI to diagnose and sometimes treat diseases.

Roentgen Diagnosis

The use of X-rays to diagnose diseases or abnormalities within the body, named after Wilhelm Roentgen who discovered X-rays.

Roentgen Therapy

A form of radiation therapy using X-rays for treating diseases, named after physicist Wilhelm Röntgen.

Ionization

The method through which an atom or molecule obtains a positive or negative charge by the addition or removal of electrons.