q1: Remember that high productivity regions not only produce large quantities of
ID: 289293 • Letter: Q
Question
q1: Remember that high productivity regions not only produce large quantities of biomass but also CO2 sinks and release large amounts of O2.
What is the consequence of an increase in the amount of fertilizer in the rivers flowing into the oceans?
a) Productivity will increase permanently, leading to higher CO2 fixation and higher O2 production
b) Eutrophication followed by anoxia; this leads to a decrease in CO2 fixation and more O2 product
c) The fisheries will benefit because the extra nutrients will feed the shells and fish.
d) Eutrophication followed by anoxia; this leads to a decrease in CO2 fixation and less O2 produced.
e) Eutrophication followed by anoxia; this leads to an increase in CO2 fixation and more O2 product
Explanation / Answer
a) Productivity will increase permanently, leading to higher Co2 fixation and higher O2 production.
Due to high biomass rapid respiration will be occured so that high Co2 ans high O2 will be produced.
b) Eutrophication followed by anoxia; this leads to a decrease in CO2 fixation and more O2 product
Due to eutrophication many plants will be raised. ( eutriphication means accumulation of large quantities of nutrients, due to rich nutrients plants will raise Co2 fixed and O2 fixation more and more.
c) The fisheries will benefit because the extra nutrients will feed the shells and fish.
Due to high nutrients fisheris will benefit, shells of sea animals and fish will be raised their population.
d) Eutrophication followed by anoxia; this leads to a decrease in CO2 fixation and less O2 produced.
Rapid plant growth due to Eutrophication, more sea animals consume more O2, so that O2 less produced.
e) Eutrophication followed by anoxia; this leads to an increase in CO2 fixation and more O2 product
Due to eutrophicatio heavy plantation and sea animals acumulation, Co2 fixation icreases with animals and O2 producton increses with plants.
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