If the volume of the 0.100 m hcl delivered to 10.0ml of naoh is 12.00ml, the number of significant figures for naoh concentration would be?

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.

did anyone actually do this? like if anyone has submitted this i rly need .