The impact of the atmosphere has on earths cycle is it moves oxygen and carbon dioxide through biosphere and transfers water into earths oceans
It would depend on what science the lab was researching/testing/studying
So if it was a chem lab it would have test tubes a Bunsen burner and chemicals
FRuit and flower producer
It would be convection because it isnt having any physical collision which rules out conduction and it is going through mid air which rules out evaporation and radiation