The Huge Volume of Mafic Magma That Erupted to Form

question 39

Multiple Choice

The huge volume of mafic magma that erupted to form the Columbia plateau basalts of Washington and Oregon are attributed to ___.

• A) sea floor spreading
• B) a hot mantle plume
• C) subduction
• D) magma mixing
• E) meteorite impact

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Definitions:

Carbon Dioxide

A colorless, odorless gas (CO2) produced by burning carbon and organic compounds and by respiration, absorbed by plants in photosynthesis.

Hemoglobin

A protein found in red blood cells responsible for transporting oxygen from the lungs to the rest of the body and returning carbon dioxide back to the lungs.

CO

Carbon monoxide, a colorless, odorless gas formed by incomplete combustion of carbon-containing materials, toxic to humans and animals when inhaled.

Carboxyhemoglobin

A complex formed by the binding of carbon monoxide to hemoglobin, which can impede the blood's ability to transport oxygen.