The Early Miners to the West Initially Engaged in __________

question 72

Multiple Choice

The early miners to the West initially engaged in __________ mining but then moved predominantly to__________ mining.

• A)surface; hard-rock tunnel
• B)mechanized; manual
• C)hard rock; panning
• D)hydraulic; environmentally friendly
• E)unionized; nonunionized

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Definitions:

Exaptation

An exaptation is a trait that initially carries out one function and is later co-opted for a new function. The original function may or may not be retained.

Tiktaalik

An extinct genus of fish-like tetrapods that represents an early stage of the transition from fish to tetrapods.

Eusthenopteron

An extinct prehistoric fish known for its significance in the study of vertebrate evolution, especially the transition from water to land animals.

Wrist Bones

A collection of eight small bones called carpal bones that support the structure and motion of the wrist.