In the following figure (Figure 8.6a from the textbook) there are three scenarios of atmospheric carbon dioxide concentration over time. What occurrence would be responsible for the sharp decrease of these concentrations following their peak? a.the deep ocean fully mixes with the surface ocean, allowing the mixed layer to drawn down more CO2 b.built up CO2 in the atmosphere reaches a maximum before it starts to decay c.anthropogenic emissions are ceased globally and instantaneously drop to zero d.atmospheric CO2 concentration reaches equilibrium with the surface ocean concentrations 1200(a)100012008008506004005501800200022002400260028003000Year10(b)-1200-8-850--550-1800200022002400260028003000Year6,4)2.(wdd) 20)Temperature (ppm)

Answered: In the following figure (Figure 8.6a…

Applications and Investigations in Earth Science (9th Edition)

9th Edition

ISBN:9780134746241

Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Chapter1: The Study Of Minerals

Section: Chapter Questions

Problem 1LR

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In the following figure (Figure 8.6a from the textbook) there are three scenarios of atmospheric carbon dioxide concentration over time. What occurrence would be responsible for the sharp decrease of these concentrations following their peak?

	a.	the deep ocean fully mixes with the surface ocean, allowing the mixed layer to drawn down more CO₂
	b.	built up CO₂ in the atmosphere reaches a maximum before it starts to decay
	c.	anthropogenic emissions are ceased globally and instantaneously drop to zero
	d.	atmospheric CO₂ concentration reaches equilibrium with the surface ocean concentrations