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:

African-Americans

A racial group in the United States with origins in the black racial groups of Africa, including those who trace their ancestry to slaves brought to the US and individuals who immigrated from African nations.

Seven Years' War

A global conflict fought between 1756 and 1763 that involved most of the great powers of the time and affected Europe, North America, Central America, the West African coast, India, and the Philippines.

Colonies' Economy

The economic systems and practices of European colonies, often characterized by agriculture, trade, and the exploitation of indigenous peoples and resources.

Treaty of Paris 1783

The agreement that ended the Revolutionary War, recognizing American independence from Britain and establishing the borders of the new nation.