All of the Following Are Major Sources of Occupational Respiratory

question 57

Multiple Choice

All of the following are major sources of occupational respiratory disease EXCEPT ________.

• A) lead
• B) asbestos
• C) silica
• D) mold

---

Definitions:

Arête

A sharp, narrow ridge found in glaciated or high mountain terrain, formed by the erosion of two glaciers from opposite sides.

U-Shaped Valley

A valley with a distinct U-shaped cross-section, typically formed by glacial erosion.

Tarn

A small mountain lake or pool, formed in a cirque excavated by a glacier.

Shoreline

The boundary line where land meets a body of water, such as a sea, lake, or river, constantly reshaped by the forces of nature.