agua (water)

Agua, or water, is a transparent, tasteless liquid essential for all known forms of life. Chemically, it’s composed of two hydrogen atoms bonded to one oxygen atom (H₂O). Water exists naturally in various states—liquid, vapor, and solid (ice)—and plays a vital role in biological processes, climate regulation, and the environment. It acts as a solvent, meaning it can dissolve many substances, facilitating transport within organisms and ecosystems. Water covers about 71% of Earth's surface, primarily in oceans, lakes, and rivers, and is crucial for hydration, agriculture, industry, and daily life.