Ahydrocarbon skeleton is covalently bonded to an amino group at one end and a carboxyl group at the other end. when placed in water this molecule would function

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.