SSC Steno Grade C and D 31 Jan 2016 Paper

Question : 71 of 200

Marks: +1, -0

It is reported that there is an ongoing decrease in the pH value of ocean water because of global warming. It happens due to

Larger uptake of $CO_2$ by ocean water.
Lesser uptake of $CO_2$ by ocean water.
Larger uptake of atmospheric nitrogen by ocean water
Lesser uptake of atmosphericnitrogen by oceanwater.

Validate

Solution:

(1) When carbon dioxide

(CO_2)

is absorbed by seawater, chemicalreactions occur that reduceseawater pH, carbonateion concentration, and saturationstates of biologicallyimportant calcium carbonateminerals. These chemical reactionsare termed ocean acidification.Ocean acidification iscalled the “evil twin of globalwarming” and “the other CO2problem.”

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