Answer :
One of the element that comprises the majority of living organisms and tends to share its electrons with carbon is Hydrogen.
What is hydrogen?
Hydrogen is an essential organic compound which is present in all living organisms.
Hydrogen can easily share its electrons with other compounds thus making it highly reactive.
Hydrogen combines with oxygen to form water which contributes to about 60% of body weight.
Hydrogen along with carbon and oxygen molecule forms bicarbonate ion which is an essential ion present in the body.
Learn more about hydrogen with the help of the given link:
https://brainly.com/question/19813237
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