Give two reasons why the blue flame is more desirable than a yellow flame

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.

so what is the problem with your lab report and whats the subject of the lab report? i will you

how important do you think an instrument is to the musician who plays it?