The Correlation Between the Two Variables Is Generally

question 97

Multiple Choice

The correlation between the two variables is generally

• A) positive
• B) negative
• C) zero
• D) positive, negative and sometimes even zero

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Definitions:

Pyroclastic Column

A dense, vertical cloud of hot volcanic ash, gas, and debris that rises from a volcanic eruption, capable of causing widespread destruction.

Volcanic Ash

Fine particles of rock and glass created by volcanic eruptions.

Laki Eruption

A major volcanic event in 1783-1784 from the Laki fissure and the Grímsvötn volcano in Iceland, which released large amounts of sulfur dioxide, causing significant environmental and health impacts in Europe.

Aerosols

Very small solid particles or drops of liquid dispersed in the atmosphere.