Halophiles Choose one: A. must have 0.2%–5% NaCl levels to grow. B. require halogen elements in large quantities. C. live in the ocean. D. must have 10%–20% NaCl levels to grow.

answer: c.

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.