..1 T-Mobile 8:23 PM Reading Quiz, Wed. Feb 21, Dessler Ch. 5: Attempt 1 1 point
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..1 T-Mobile 8:23 PM Reading Quiz, Wed. Feb 21, Dessler Ch. 5: Attempt 1 1 pointsSave Answer Question 1 Looking at Figure 5.1, how much does the concentration of carbon dioxide vary within a calendar year? Answer in ppm 1 points Save Answer Question 2 Which carbon reservoir contains the most carbon O The atmosphere O The land biosphere The upper ocean The deep ocean Rocks 1 points Save Answer Question 3 Match the following processes with the carbon exchange they cause A Removes carbon from rocks in the Earth's interior and puts it in the atmosphere Ocean acidification 8 Removes carbon from the atmosphere and puts it into the biosphere Removes carbon from the atmosphere and Save and Submit Click Sauve and Submit to save and submit. Click Save All Ansvers to save all answers.Explanation / Answer
2) the carbon reservoir containing most carbon are the rocks and reservior where least carbon is present is the atmosphere . carbon present in the mineral rocks such as limestone , dolomites etc. are the major reservoirs of carbon on earth which also inculdes fossil fuels.
3)
A- volcanoes,
B- photosynthesis ,
C- chemical weathering
D- ocean acidification
4) the carbon in fossil fuels comes from the rocks
5) in order to return to the normal concentration it would take 10000 years or more.
this is so beacuse from a report it has been estimated that if a pulse of CO2 added to the atmosphere , in 1000 years 20% of the CO2 emiited is still present in the atmosphere, and in 100 years 40% of it is present with the role radiating heat energy.
further from another study shows that if adding a pulse of CO2 , 75% of it has a lifetime of 1800 years before returning to normal and rest 25% would be around 5000 years of survival lifetime until normal value is reached so its evident that it would 10000 or so to return to normal condition.
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