Its a MCQ.​

In complete sentences describe the energy flow between the sun, the earth, and space.

How did alexander fleming’s research solve a societal problem? he developed ways to treat inherited diseases. he advocated for regular hand washing to kill germs. he discovered a new type of medicine that could treat infections. he discovered the cause of mad cow disease, an emerging disease.

Which number represents a basic ph, 4 or 9? numerical answers expected! answer for blank 1: i'll give