Aplant grows three inches in a month. why is this a physical change? a. the size of a plant has changed b. the plant makes energy from the sun to grow the flower c. heat of combustion from the sun the flower grow d. special structures in the plant react with sunlight to make the flower

A. The size of the plant has changed

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Please mark brainliest :)

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

i think it's c. i'm not sure but i think so.