Final answer:
Water (H₂O) makes up more than half of the human body.
Step-by-step explanation:
The molecule that makes up more than half of the human body is H₂O, also known as water. Water is essential for life and plays a crucial role in various biological processes, including transportation of nutrients, regulation of body temperature, and lubrication of joints. It makes up about 60% of the human body weight and is found in all cells, tissues, and organs.
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