Final answer:
Micturition, also known as urination, is the primary method for eliminating water-soluble chemicals from the body.
Step-by-step explanation:
The primary method for eliminating water-soluble chemicals from the body is micturition, which is commonly known as urination. During micturition, the bladder contracts, expelling urine from the body through the urethra. This process helps to remove waste products and maintain fluid balance in the body.
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