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 are the 4 different named for the Ursa Minor ?
When did alexander graham bell die at ?
Where to buy rose tube pipes online ?
Most significant invention of the 20th century ?
Where to buy rose tube pipes online ?

What is the economy and income in mexico ?
What college did Ken Griffey JR go ?
Plants and animals that live in grasslands ?
What did Stephen Hopkins say about British taxes ?
What did Stephen Hopkins say about British taxes ?

Soccers worst ever injury ?
What could be tested using radioactive dating ?
The difference between a scanning electron microscope and a transmission electron microscope ?
What is the function for the ingredient free range egg ?

What could be tested using radioactive dating ?