While gina conducts a calorimetry investigation, she observes the temperature change of a reaction in a sealed, insulated calorimeter. would you consider the calorimeter an example of a closed, open, or isolated system? explain your answer in complete sentences.

the ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (uvr) from the sun, protecting life on earth from its potentially harmful effects. when the sky is clear, there is an inverse relationship between stratospheric ozone and solar uvr measured at the earth's surface.