Carbon is the sixth element in the periodic table. Located between boron (B) and nitrogen (N), it is a very stable element. Because it is stable, it can be found both by itself and in many naturally occurring compounds. Scientists describe the three states of carbon as diamond, amorphous, and graphite.
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Since rubella vaccine is made from duck eggs if the client has an egg allergy, an allergic reaction may occur. Which would be a reason to cancel the rubella vaccination.
The answer is thinner. the air gets thinner :)