Below Is a Figure from an Experiment That Was Performed

question 40

Multiple Choice

Below is a figure from an experiment that was performed to measure the effect of carbonate ion (CO₃^2-) concentration on the calcification (growth) rate of coral reefs. At which point on the graph is the ocean pH the lowest?

• A) A
• B) B
• C) C
• D) D

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Definitions:

Regional Elevations

The varying heights of the Earth's surface in a specific area, measured relative to sea level.

Appalachian Mountains

A mountain range in eastern North America, extending from Newfoundland in Canada to Alabama in the United States.

Great Plains

A broad expanse of flat land, much of it covered in prairie, steppe, and grassland, located in the United States and Canada.

Erosional Remnant

A mountain or hill that remains when adjacent areas have eroded to lower levels.