1 Without its atmosphere, Earth would be a very different planet. 2  Gases in the atmosphere allow plants to photosynthesize and animals and plants to engage in respiration. 3  Water vapor, which is an atmospheric gas, is an essential part of the water cycle. 4  All weather takes place in the atmosphere.
Energy transformation can also be explained in terms of potential energy, the stored energy of a system, which can be converted into kinetic energy, the energy of movement. For example, a roller coaster sitting at the top of a hill is said to have potential energy.
According to the principle of conservation of energy, energy is perpetual but can be transformed. During the process of transformation, part of the energy will be converted into heat in order to maintain its balanced condition. The resultant heat produced must then be dispersed through processes such as emission or radiation, and a portion of it is converted into energy.