How Is Magma Created in a Subduction Zone

question 28

Multiple Choice

How is magma created in a subduction zone?

• A) Friction between the two plates causes the lithosphere to melt.
• B) Subduction brings one plate to a depth hot enough for minerals in the plate to melt.
• C) Subduction brings one plate to a depth hot enough for minerals to release water; this water causes melting in the overlying asthenosphere.

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Definitions:

Menstrual Cycle

The regular natural change that occurs in the female reproductive system that makes pregnancy possible, including the process of ovulation and menstruation.

Infradian Rhythm

Biological rhythms with a cycle longer than 24 hours, such as menstrual cycles or seasonal behaviors.

Circannual Rhythm

Biological processes that occur on an annual or yearly cycle.

Rhythmical Movement

Repetitive, patterned physical motion, which can be involuntary, such as breathing, or intentional, such as dancing.