To not go and kiss underage children
Answer:
<em>violin, viola, cello, and bass.</em>
<em />
Tetravalent
We have already seen an example of how a covalent bond can form between two hydrogen atoms producing molecular (H2) as opposed to the atomic form of hydrogen. ... As in all its compounds and its elemental forms, carbon is tetravalent, which means that it always forms four bonds.
I'm positive that the following is correct:
<u>Doug</u> creates simulations of geologic formations. - <u>scientific illustrator</u>
<u>Elaine</u> designs plastic molds to model human body parts. - <u>sculptor</u>
<u>Greg</u> developed a simulation of an error in a surgical procedure. - <u>medical illustrator</u>