If 2g of the original 64g remains and the half-life is 1,864 years, how much total time has passed?

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.

particle   p is an electron and particle q is a neutron

elements make up everything, and they combine to make compounds.

the answer is c

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