Which of these is an advantage of using models to study tectonic plate movements O Actual plate movements can be stopped.
O Actual plate movenents can be made less freque
O Models of the exact material as original can be me
O Observations can be made from outside the syste

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.

catya your not at all which answer i've seen you do this on another question!

може ли да зареждате повече информация, моля