If we compare Venus's atmosphere to that of Earth, we find that the temperature in the atmosphere of Venus decreases smoothly with increasing altitude all the way from the surface (hottest) to the outermost parts of the atmosphere (coolest), whereas the temperature in Earth's atmosphere at first decreases, then increases, then decreases again, with increasing altitude. What is one reasonable interpretation of these observations?

Venus is one of the most hottest and inhabitable planet inside the solar system. While, there is a much of the exposure from the red giant or simple "the Sun". But, the certain form of gaseous composition inside the Venus's planet there are carbon atoms which are far denser then the corresponding elements.While, surface composition or we can just as during the making of the planets the elements which absorbs most of heat energy and are present at the higher degree of temperature,T they were present to build up the whole structure of the planetary core system is made of those elements.

Such form of planetary composition makes it even more hot and the temperature,T on the lower altitudes is far high then most of the planets inside the solar system.But, if we go up inside the atmospheric region of the planet there we will record the unusual effects of the temperature as the altitude level rises up.As there are heavy atoms inside atmosphere of the planet Venus and these Carbon atoms are much able to absorb most of the heat energy inside itself. As there are less free energy for the different instruments to measure while being on the higher altitude levels of the planet.The Earth acts differently to the temperature,T values inside the atmosphere of the planet. As there are certain composition differences between the different celestial entities, while most of these elements present on the surface can have a normal level of temperature,T on it, the central region of the planet has a mixture of gases which makes to have a high level of heat energy in it.Along, with which the surface of the planet is covered by a different layers of gaseous composition consuming all the available amount of energy.As it leaves no amount of heat energy for the different atoms to posses inside them.

The peak above is part of the  sierra madre occidentals ,  a chain of volcanic mountains that runs through the middle of central america.