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Step 5: Measure the Reaction Rate at = 5°C
600 ml
Using a graduated cylinder, fill a 600 mL beaker with 100 mL of water.
Temperature of the water:
°C. Reaction time:
seconds DONE

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.

i think its 100

i hope this !