Increasing concentrations of Oxides (1 Viewer)

[Niren7]

Hi, does anyone hav a definitive answer to the question "which oxides are increasing in concentration in the atmosphere".
I've been getting a couple of different answers from various teachers..

I think that the main gases increasing in concentration over time in the atmosphere are CO2 and N2O, since CO2 is not very soluble, CO is not being produced in significant amounts and NO2 and SO2 leave the atmosphere as acid rain..
what do you think?

 

[xiao1985]

CO2 is more soluable in water than most gases due to its ability to form carbonic acid...

NO2 SO2 do form acid rain, but not 100 percent of it...

after all, their increased concentration in atmosphere contributed to the acidified rain in the first place...

 

[Niren7]

CO2 is not very soluble

oh, sorry i didnt mean soluble exactly...i meant to say that water that has absorbed CO2 is less acidic when compared to water that has abosorbed SO2 or NO2.

Here is the question that I got wrong:

The list which contains oxides whose concentrations in the atmosphere have all been increasing significantly over the past 100 years is?

a.) CO2 and N20
b.) CO2, SO2 and NO2
c.) CO, SO2 and NO
d.) CO2 and NO2

N20 is a neutral oxide which is supposedly increasing (significantly?) due to natural factors such as the decomposition of organic matter eg. fertilizer

I answered 'b', but apparently the answer is 'a' :/

 

[xiao1985]

vague question... technically, all four are correct...

you can go and argue this question with the teacher...