QUESTION 21 The troposphere (the lowest layer in the atmosphere) of Venus: A.is quite cold and thin B.is a layer with quite a bit of water vapor, held down by the pressure of the layers above C.has roughly the same air pressure as the troposphere of the Earth D.resembles being about a kilometer or so under the Earth's ocean - a huge mass of air keeps temperatures pretty much the same all over the E.planet resembles the ozone layer of the Earth's atmosphere in many ways