1 indicate the substance (A and B) from the above illustration that presents a compound and a mixture.
1.2 Give a difference between substances labelled A and B.
1.3 Use a diagram to show the chemical bond when the substance
ture A is formed.
LA Give the difference between compound and mixture
15 Explain why salt dissolved in water is a mixture​

sup bro, im dumb, but this is what i found xd

"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"