Question

A student is participating in the school science fair. She wants to investigate household cleaners.

Which question can she best answer through scientific investigation?
Which household cleaner is most effective at removing stains?
Which household cleaner smells the best?
How often should a person use household cleaners?
Where should a person buy household cleaners?

Answer 1

How often should a person use household cleaners?

Step-by-step explanation:

yoIt doesn't matter how a household cleaner smells, because they are there to clean the house, not themselves. Stains is also not the only thing they clean. Lastly, you don't go somewhere to shop for a worker. Therefore the answer is "How often should a person use household cleaners?"