AP BIOLOGY

Detailed explanation-1: -It is because of the presence of high amounts of salt in the ocean, which does not allow the water to freeze compared to rivers and lakes that have salt in less quantity which freezes the water when the temperature drops below 0 degrees celsius.

Detailed explanation-2: -Specific heat is defined by the amount of heat needed to raise the temperature of 1 gram of a substance 1 degree Celsius (°C). Water has a high specific heat, meaning it takes more energy to increase the temperature of water compared to other substances.

Detailed explanation-3: -Ocean water freezes at a lower temperature than freshwater. Fresh water freezes at 32 degrees Fahrenheit but seawater freezes at about 28.4 degrees Fahrenheit, because of the salt in it. When seawater freezes, however, the ice contains very little salt because only the water part freezes.

Detailed explanation-4: -One of the unique properties of water is that it becomes less dense as its temperature decreases from 4° C until it freezes at 0° C. This allows many aquatic life forms to survive through the winter.