Well, I have just quoted two possible websites to which you might have used. There were others. The similarities were uncanny. Let me just quote one sentence from <a href="https://www.quora.com/What-will-happen-if-we-drink-a-lot-of-water">Quora</a>:

> Liquid H2O is the sine qua non of life. Making up about 66 percents of the human body, water runs through the blood, inhabits the cells, and lurks in the spaces between. At every moment water escapes the body through sweat, urination, defecation or exhaled breath, among other routes. Replacing these lost stores is essential but rehydration can be overdone. There is such a thing as a fatal water overdose.

Try to navigate through your article and you will find sentences which are 80-90% resemble the sentences I've just quoted. Unfortunately, I didn't believe in coincidence when it comes to plagiarism. You still can make it up though. Contact your designated mentor.