Air that resists vertical movement is said to be stable. The vertical movement of air is referred to as convection, while advection involves the horizontal movement of air and heat energy transference, Temperature differences at the Erath's surface occur wherever there are differences in surfaces substances. 
        
             
        
        
        
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Animal cloning offers great benefits to consumers, farmers, and endangered species: Cloning allows farmers and ranchers to multiply the reproduction of their productivity of livestock in order to produce safe and healthy food for the community. Cloning can be used to protect endangered species. For example, in China, panda cells are being kept on reserve should this species' numbers be threatened by extinction.
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<span>Lamarck proposed that by selective use or disuse of organs, organisms acquired or lost certain traits during their lifetime. Then passed onto offspring-leading to change in species.</span>