Propose a reason why the CO2 fluxes are greater for terrestrial biological activity than for marine biological activity. Marine biological activity:Photosynthesis andrespiration nearly balancein the big picture.Terrestrial biological activity:As in the marine realm,photosynthesis andrespiration on land are nearlybut not quite in balance.Human activity:Human inputs of carbon into theatmosphere are large relative tothe net atmospheric exchangeassociated with naturalbiological processes.Atmosphericreservoir830Change inland use0.5 1.5TerrestrialTerrestrialFossilphotosynthesis120respiration119Terrestrialfuels7.8organismsreservoir450-650MarineMarinephotosynthesis| respiration90Surface waterreservoir900Marine organismsreservoirOrganic matterin seils reservoir1500-2400Deep oceanwater reservoir37,100Sedimentsand sedimentaryrock reservoir66,000,000-100,000,000

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Biology

Propose a reason why the CO2 fluxes are greater for terrestrial biological activity than for marine biological activity

Biology: The Unity and Diversity of Life (MindTap Course List)

15th Edition

ISBN:9781337408332

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter48: Human Impacts On The Biosphere

Section: Chapter Questions

Problem 3CT

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Concept explainers

Air Pollution

The excess accumulation of pollutants or undesirable alterations in the environment and its resources such as air, water, and land can be referred to as pollution. Pollution affects the components of the environment. Pollution is considered a global issue as it is showing harmful effects worldwide. Metropolitan cities are more impacted by pollution than countryside or villages.

Question

Propose a reason why the CO2 fluxes are greater for terrestrial biological activity than for marine biological activity.

Marine biological activity:
Photosynthesis and
respiration nearly balance
in the big picture.
Terrestrial biological activity:
As in the marine realm,
photosynthesis and
respiration on land are nearly
but not quite in balance.
Human activity:
Human inputs of carbon into the
atmosphere are large relative to
the net atmospheric exchange
associated with natural
biological processes.
Atmospheric
reservoir
830
Change in
land use
0.5 1.5
Terrestrial
Terrestrial
Fossil
photosynthesis
120
respiration
119
Terrestrial
fuels
7.8
organisms
reservoir
450-650
Marine
Marine
photosynthesis| respiration
90
Surface water
reservoir
900
Marine organisms
reservoir
Organic matter
in seils reservoir
1500-2400
Deep ocean
water reservoir
37,100
Sediments
and sedimentary
rock reservoir
66,000,000-
100,000,000

Study of all marine organisms that dwell in oceans or other saltwater environments. All sea-based life from kelp to whales are studied under this discipline.

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Carbon cycle is the cycling of carbon element in the environment.

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