Answer. Stratosphere is further divided into three layers upper, middle and lower region. The presence of ozone in stratosphere region is responsible for the rise of temperature due to absorption of radiations. Within this region, temperature increases as altitude increases, such as lower layer temperature is about -58°C and upper layer is about 2°C. It is because ozone's upper layer absorbs high energy ultraviolet radiation coming from the son while lower layer receives very low UV- radiations.