If a covalent bond is polar: Group of answer choices Protons are shared by atoms Electrons are not shared by atoms The bond is not important to living cells One of the atoms has a partial negative charge

answer; /// i do believe that the correct answer is (c)nuclear bond

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.