A new drug has been released to the public and is popular among consumers. It is effective in relieving high blood pressure. However it has altered some patients personalities. Which stage of the engineering process may address this negative side effect? A. screening
B. Looking for improvements
C. Evaluating test results
D. Testing

a small container that holds a source of energy a solar cell that captures light energy and converts it into electricity a voltaic cell that uses the oxidation of a fuel to produce electricity

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.

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explanation: