Which shows the correct order of increasing trophic level, from producer to tertiary consumer?
fungi, deer, wolf, grass
fungi, grass, wolf, deer
grass, deer, wolf, fungi
grass, fungi, wolf, deer

i think it is the first one

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.