Solubility of gases at depth 5.2.3 (1 Viewer)

[bEAbEA]

Can anyone please help me with this dot point:

5.2.3
Compare and explain the solubility of selected gases at increasing depths in the oceans

I know that as depth increases, temperature decreases and pressure increases, but what else should i know for this one?

Thanks heaps.

 

[Haku]

oxygen at depts is low due to the fact that is it used up by marine organisms. The aeration of sea water by the wave action only go so deep (i think it was 100 meters or so), thats where most marine animal thrive. While the amount of CO2 increase with pressure due to the fact it turn to carbonic acid H2CO3. The amount of CO2 at depts is many times the ammount of CO2 in the atmosphere. This high CO2 level is also contributed by the decay of death marine animals and organisms, whening decaying, use up O2 and release CO2.

due to the amount of carbonic acid at depts the pH of sea water also decrease.