Heap-Leach Extraction Involves Piling Crushed Ore into Large Piles and Spraying

question 16

Multiple Choice

Heap-leach extraction involves piling crushed ore into large piles and spraying it with ________________.

• A) an alkaline-cyanide solution
• B) concentrated salt water
• C) high-pressure steam
• D) giant sandblasters
• E) none of these are correct.

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Definitions:

Compliance

In a medical context, the ability of a hollow organ (like the lungs or blood vessels) to stretch or expand in response to pressure changes.

Aging

The process of becoming older, characterized by a gradual decline in physical and sometimes mental capacity.

Aortic Arch

The curved portion of the aorta from which the major arteries to the head and upper limbs branch off.

Left Axillary Artery

A major blood vessel that supplies blood to the left side of the upper body, including the shoulder, arm, and hand.