What Chemical Weathering Process Associated with Surface Mining Activities Is

question 59

Multiple Choice

What chemical weathering process associated with surface mining activities is a major environmental hazard?

• A) oxidation of pyrite and other sulphides to produce "mine acid" or acid rock drainage
• B) recurrent landslides from unstable talings piles
• C) release of oxidized mine gases
• D) coal oxidation

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Definitions:

Independent Variables

Factors in a study or simulation that are intentionally altered to observe their impact on outcome variables.

Least Squares Regression

A statistical method for estimating the relationships among variables.

Chemical Process

A method or means of changing one or more chemicals or chemical compounds, often involving a series of steps with physical and/or chemical changes.

Significance Level

The probability of rejecting the null hypothesis when it is true, commonly denoted by alpha.