In science it is best to continue research, and rinse and repeat. This allows for a stronger hypothesis if you're results are the same every time, or change your hypothesis if you stumble upon new results. <span />
Answer:
D
Explanation:
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Aldehydes and Ketones. Aldehydes and ketones are classes of organic compounds that contain a carbonyl (C=O) group.
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I believe that the answer is element
Answer:
They could possibly make daily check ups to the research facility?