Why is the renewable energy resource you chose is negative?

There’s a high need for energy storage and are very expensive. Renewable energy is also not always available because some need sun while others need wind.

Explanation:

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.