Explain where cartilage is concentrated in a long bone and explain the purpose of its location

They are located at the center of the bones so as to allow for smooth movement between the bones by reducing friction as they are short bones

stratosphere: as the altitude increases, the air temperature increases. the stratosphere has a layer of ozone, called the ozone layer. this layer absorbs most of the ultraviolet radiation from sunlight. this results in the stratosphere being warmer.