The solubility of a saturated solution of Pb(NO3)2 at 10 °C is 46.0 g in 100 g of water. Which of the following concentrations would represent an unsaturated
solution?

60.0 g Pb(NO3)2 in 100 g of water
50.0 g Pb(NO3)2 in 100 g of water
40.0 g Pb(NO3)2 in 100 g of water
100.0 g Pb(NO3)2 in 100 g of water

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.

the earth would become to overheated and everything alive on it will eventually die from overheating. plants will eventually die as well, water will evaporate, and it will be nothing but a hot planet without anything living on it.