Given the task definition and input, reply with output. You are given a list of queries separated by new line. Your job is to answer with the query that is the most well-formed or well-structured query in terms of grammar, punctuations, or spelling errors.

What is the difference between an elemental molecule and an atom ?
What is trade cycle explain ?
One meter is equall fts ?
Average weight of 1 apple ?
What is the difference between an elemental molecule and an atom ?