Which characteristic of an outermost shell is required for an atom to not need any electrons? A. 1 electron
B. more than 2 electrons
C. more than 21 electrons
D. a full

If the last shell is full then it won't need any electron

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

i hope this : )

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.