In an experiment, equal amounts of water and soil were first heated and then left to cool. The graph shows the change in temperature for each with time.

A graph with the title Change in Temperature is shown. The y axis title is Temperature in degree C and the x axis title is Time in seconds. An inverted U shaped curve labeled A is plotted. A flatter curved line labeled B is also shown plotted on the graph.

Which statement about the curves A and B is true?

Curve A represents how soil takes longer to heat and longer to cool.
Curve B represents how water takes longer to heat and longer to cool.
Curve A represents water as it heats rapidly and cools slowly.
Curve B represents soil as it heats slowly and cools rapidly.

Curve A represents how water takes longer to heat and longer to cool. This can be determined by analyzing the shape of the curve. Curve A is an inverted U-shaped curve, indicating that the temperature initially increases, reaches a peak, and then decreases. This shape suggests that water takes longer to heat up and longer to cool down. In contrast, curve B is described as a flatter curved line. This implies that the temperature changes more slowly compared to curve A. Since curve B is flatter, it indicates that the soil heats up and cools down more quickly. Therefore, curve A represents water as it takes longer to heat and longer to cool, while curve B represents soil as it heats slowly and cools rapidly