Explain the following:a. What is the role of anomalousbehaviour of water in preservingaquatic life in regions of coldclimate?
Question
Explain the following:
a. What is the role of anomalous behaviour of water in preserving aquatic life in regions of cold climate?
Solution
The anomalous behavior of water plays a crucial role in preserving aquatic life in regions of cold climate. Here's how:
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Anomaly of Water: Unlike most substances, water expands as it cools down and becomes less dense as it freezes. This is known as the anomalous behavior of water.
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Formation of Ice: When the temperature of a body of water (like a lake or a pond) drops, the water on the surface cools down first. As it cools, it expands and becomes less dense, causing it to float on the surface. This forms a layer of ice on the surface.
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Insulation: This layer of ice acts as an insulator, preventing the cold air from further cooling the water beneath. This means that the water at the bottom of the lake or pond remains at a constant temperature of 4 degrees Celsius, which is the temperature at which water is most dense.
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Preservation of Aquatic Life: This constant temperature allows aquatic life to survive, even in freezing conditions. If water behaved like other substances and became denser as it froze, the ice would sink to the bottom. This would cause the entire body of water to freeze, making it impossible for aquatic life to survive.
In conclusion, the anomalous behavior of water is essential for preserving aquatic life in regions of cold climate.
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