Respuesta :
It's that they are the main factor in helping these crops grow. if bees weren't around then we would lose 15 billion dollars worth of crops that have not been pollinated. I hope this helps you
Based on the context in this sentence, account for means Are the main factor in.
Explained as..
To determine the location or state of a person or thing. If a particular thing accounts for a part or proportion of something, that part or proportion consists of that thing, or is used or produced by it.
Thus,based on the context in this sentence, account for means Are the main factor in.
Learn more on context here - brainly.com/question/19750175
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