(15 points + brainliest) what is true of carbon atoms? -- a) they are not found in living organisms. b) they have five valence electrons. c) they can form up to four covalent bonds. d) they do not bond with other elements.

B)

B is false because if you look at a model carbon cell it only has 4 valence electrons,The answer is actually C each carbon atom when it connects to a nitrogen attaches using 4 covalent bonds.

it is either c or d and i know for sure it is not a or b

not only is it colder, it also becomes darker, less salty, and more dense.