B because it uses the suns power to make electricity which doesn't do anything bad to the atmosphere.
it also goes with others but i am not so sure
Answer:
In Email's Subject Line “Re:” most commonly understood as “Reply/Response” to an Email. “Re: ” is not taken as abbreviation of Regards/Reference. For Reference, Abbreviation is “Ref.”Explanation:
Programming Languages have evolved in phases called generations. The five generations of computers are : <span>First Generation (1940-1956) Vacuum Tubes. Second Generation (1956-1963) Transistors. Third Generation (1964-1971) Integrated Circuits. Fourth Generation (1971-Present) Microprocessors. <span>Fifth Generation (Present and Beyond) Artificial Intelligence.</span></span>