The closest correct answer is "E" along with Kano's answer of "F" as a further explanation..
Added****
Jim Z, "E" is NOT irrelevant when you are talking about the mixing of the atmosphere between the northern and southern hemispheres!
http://acmg.seas.harvard.edu/people/facu...
Now, pay attention to this graphic from that link - http://acmg.seas.harvard.edu/people/facu...
"C" is correct, but only in the sense that the oceans are the largest carbon sinks and there is more ocean surface area in the southern hemisphere than in the northern hemisphere. But, the CO2 emitted into the atmosphere by the far more industrialized northern hemisphere still takes time to work its way into the southern hemisphere. Oceans in the northern hemisphere also absorb CO2 so not all of the atmospheric CO2 in the northern hemisphere is evenly transported through the air to the southern hemisphere. Since the northern hemisphere is far more industrialized than the southern hemisphere and since it takes a year or longer for this CO2 to transport to the southern hemisphere then the CO2 levels in the northern hemisphere will be higher than in the southern hemisphere. I stand by my answer of "E" and enhance it with "F".
C)
Most of the land on Earth is in the Northern Hemisphere, which means there are more people to release
CO2.
I'd also venture a guess that there are more developed countries in the North Hemisphere, which would lead to higher emissions of CO2
F) the northern hemisphere has the majority of industry that produces Co2
It is C. Any answer with Australia can be thrown out without much thought. It is insignificant compared to S America and Africa. This must be a question from Australia. E is irrelevant.
http://carboncycle2.lbl.gov/resources/ex...
If anyone can help me that would be great! I'm having a little bit of trouble.
Carbon dioxide levels in air samples taken from the south coast of Australia, in the Southern Hemisphere, show slightly lower average values than found in air samples from Hawaii that were taken at the same time. What is the most likely explanation for this difference?
A)
There is very little vegetation in Australia
B)
Australia is colder than Hawaii
C)
There is much less land in the Southern Hemisphere than in the Northern Hemisphere
D)
Australia is drier than Hawaii
E)
It takes 1 to 2 years for the troposphere to completely mix.
