The data in this graph could also be plotted as a pie chart. As atmospheric CO₂ concentrations reach 560 ppm, or double the preindustrial level, the coral calcification rate is projected to be reduced by more than two-thirds from what it was at the preindustrial level. Declining coral calcification rates suggests a decrease in the level of bicarbonates and an increase in the level of carbonates in seawater. Although not reflected in the graph, based on how ocean acidification works, the relationship between oceanic pH and coral reef calcification rates can be predicted to be positively (or directly) correlated. As atmospheric CO₂ concentrations reach 840 ppm, or three times the preindustrial level, the calcification rate will be

Human Anatomy & Physiology (11th Edition)
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Chapter1: The Human Body: An Orientation
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The following graph depicts the relationship between atmospheric carbon dioxide concentrations and calcification rates in corals.

 

Coral calcification rate
(xep/zw/jouw)
70
60
50
40
30
20
10
0
Preindustrial CO₂
level
(280 ppm)
Present CO₂
level
(400 ppm)
2X Preindustrial CO₂ 3X Preindustrial CO₂
level
level
(560 ppm)
(840 ppm)
Transcribed Image Text:Coral calcification rate (xep/zw/jouw) 70 60 50 40 30 20 10 0 Preindustrial CO₂ level (280 ppm) Present CO₂ level (400 ppm) 2X Preindustrial CO₂ 3X Preindustrial CO₂ level level (560 ppm) (840 ppm)
True
False
The data in this graph could also be plotted as a pie chart.
As atmospheric CO₂ concentrations reach 560 ppm, or double the preindustrial level, the coral calcification rate is
projected to be reduced by more than two-thirds from what it was at the preindustrial level.
Declining coral calcification rates suggests a decrease in the level of bicarbonates and an increase in the level of
carbonates in seawater.
Although not reflected in the graph, based on how ocean acidification works, the relationship between oceanic pH and
coral reef calcification rates can be predicted to be positively (or directly) correlated.
As atmospheric CO₂ concentrations reach 840 ppm, or three times the preindustrial level, the calcification rate will be
reduced to 30 mmol/m²/day.
Coral reef calcification rates are projected to steadily decline as atmospheric CO₂ concentrations increase.
Transcribed Image Text:True False The data in this graph could also be plotted as a pie chart. As atmospheric CO₂ concentrations reach 560 ppm, or double the preindustrial level, the coral calcification rate is projected to be reduced by more than two-thirds from what it was at the preindustrial level. Declining coral calcification rates suggests a decrease in the level of bicarbonates and an increase in the level of carbonates in seawater. Although not reflected in the graph, based on how ocean acidification works, the relationship between oceanic pH and coral reef calcification rates can be predicted to be positively (or directly) correlated. As atmospheric CO₂ concentrations reach 840 ppm, or three times the preindustrial level, the calcification rate will be reduced to 30 mmol/m²/day. Coral reef calcification rates are projected to steadily decline as atmospheric CO₂ concentrations increase.
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