Which six elements are the most prevalent in living things sh,,o, f,p, ca c, h, o, s, p, cl n, s, c, p, h, o c, h, p, o, mg, n

  " S , P , O , N, C, H " .

Explanation:

     " S (sulfur), P (phosphorous), O (oxygen), N (nitrogen), C (carbon),  and          H (hydrogen) — are the six elements from the Periodic Table of Elements — and from the answer choices provide — that are the most present in living things.

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i believe it would cause an increase of percipitation, though i could be wrong. so i would say b is the answer.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.