Answer :
Final Answer:
In the winter season, the surface temperature of a lake is 1 degree Celsius. The temperature at the bottom of the lake will be greater than 1 degree Celsius, thus the correct option is d.
Explanation:
In winter, the surface temperature of a lake may drop to 1 degree Celsius due to exposure to cold air. However, water has a unique property called density stratification, where the colder water sinks while the warmer water rises. As a result, the temperature at the bottom of the lake is typically warmer than the surface temperature. Therefore, it is logical to infer that the temperature at the bottom of the lake will be greater than 1 degree Celsius.
During winter, the surface of the lake loses heat to the colder air, causing it to cool down to 1 degree Celsius. However, the water at the bottom of the lake remains relatively warmer due to a phenomenon known as thermal stratification. This occurs because water reaches its maximum density at around 4 degrees Celsius. As a result, colder water from the surface sinks while warmer water from the bottom rises, creating layers of different temperatures within the lake. Therefore, it is reasonable to expect that the temperature at the bottom of the lake will be greater than 1 degree Celsius.
Given the phenomenon of thermal stratification, the temperature at the bottom of the lake during winter is likely to be higher than the surface temperature of 1 degree Celsius. While the exact temperature may vary depending on factors such as depth and geographic location, it is reasonable to assume that the bottom temperature will exceed 1 degree Celsius due to the dynamics of water density and heat transfer within the lake. Therefore, the correct choice is d) Greater than 1 degree Celsius.
