Which Minerals Usually Give Mafic and Ultramafic Rocks Their Dark

question 45

Multiple Choice

Which minerals usually give mafic and ultramafic rocks their dark colors?

• A) plagioclase feldspar and pyroxene
• B) amphibole and pyroxene
• C) olivine and pyroxene
• D) plagioclase feldspar and olivine

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Attention Deficit Hyperactivity Disorder, a neurodevelopmental disorder characterized by difficulties with attention, impulse control, and hyperactivity.

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The biochemical processes that occur within a living organism to maintain life, involving the conversion of food into energy and building materials.

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A neurotransmitter associated with movement, attention, learning, and the brain’s pleasure and reward system.