When you rub sanitizer on your hands, it feels cool because the evaporation of alcohol absorbs heat from your skin. This cooling effect occurs as the sanitizer evaporates and dries off.
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The water in an earthen pot is cold because the porous material allows evaporation of water from the surface. This process absorbs heat, lowering the temperature of the remaining water inside the pot.
Clouds give us rain when water vapor in them cools and condenses into tiny droplets. These droplets combine to form larger droplets, which eventually fall to Earth as precipitation due to gravity.
If evaporation ceased, water wouldn’t turn into vapor to form clouds or precipitation. This would disrupt the water cycle, leading to droughts, reduced freshwater availability, and severe impacts on ecosystems and agriculture.
Evaporation is the process where liquid water turns into vapor when heated, occurring at any temperature. Condensation is the reverse process where water vapor cools and changes back into liquid, forming droplets.
Water kept under a tree still evaporates because it absorbs heat from the surrounding air and ground. Even in the shade, the ambient temperature provides enough energy for water molecules to evaporate gradually.
Without water on Earth, all living organisms would perish. Plants, animals, and humans rely on water for survival. The absence of water would stop the water cycle, resulting in no rain, agriculture, or life.
“A Journey through States of Water,” Chapter 8, explains how water changes between solid, liquid, and gas through freezing, melting, evaporation, and condensation. It highlights the water cycle, its importance, and water conservation.
Absence of trees disrupts the water cycle by reducing transpiration and increasing runoff. Without trees to absorb and release moisture, less water evaporates into the atmosphere, leading to reduced precipitation and potential drought.
To save water, conserve it by fixing leaks, using it efficiently, and recycling. Additionally, collect rainwater, use water-saving fixtures, and educate others about the importance of water conservation to protect this valuable resource.