A possible Hypothesis probably .
The primary function of all lymph nodes is the production of lymphocytes, which help defend the body against microorganisms and against harmful foreign particles and debris from lymph before it is returned to the blood stream. The major clusters of lymph nodes are in six areas.
The answer is A.<span> the water would all be trapped in the atmosphere. </span>
Cold air will underlie warmer air at higher altitudes. :^)
Hope this helps!
Definitely answer C
Nuclear fission it is!