INTRODUCTION
Water is essential to life as we know it. It is essential for the functioning of all organisms on Earth, from single-celled bacteria to the largest of mammals. Water is also essential for the functioning of human civilization, providing sustenance, sanitation, and energy. Water makes up around 60% of the human body, and is the primary component of most biological processes. In addition to providing the medium for biological processes, water also serves as a transport medium for nutrients, electrolytes, and other molecules throughout the body. It also serves as a buffer, to regulate the pH of the body and maintain cellular homeostasis. Water is also essential for photosynthesis, the process by which plants convert light energy into chemical energy. Without water, life as we know it would be impossible.
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