Oceans Are About _____% More Acidic Than They Were in the 1960s

question 187

Multiple Choice

Oceans are about _____% more acidic than they were in the 1960s.

• A)10
• B)20
• C)25
• D)30
• E)40

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Definitions:

Gabbro

A coarse-grained igneous rock that forms from the slow cooling of magma beneath the Earth's surface, composed mainly of plagioclase feldspar and pyroxene.

Welded Rhyolite

Is a type of volcanic rock that has been superheated and compacted under extreme conditions, resulting in a dense, hard rock.

Calderas

Large, usually circular depressions in the ground caused by volcanic activity, specifically the collapse of a magma chamber after a volcanic eruption.

Caldera-forming Eruption

A volcanic eruption significant enough to collapse the summit area and form a large, basin-like depression called a caldera.