Answer:
This difference most likely occurred because the specific heat of water is higher than that of basalt.
Explanation:
Basalt is a fine-grained, dark-colored igneous rock that is mostly made up of plagioclase and pyroxene minerals.
Water is a gaseous, liquid, or solid substance made up of the chemical elements hydrogen and oxygen, and it can exist in gaseous, liquid, and solid states.
Basalt can be used to heat water. But when the specific heat of water is higher than that of basalt, the temperature of the basalt will drop more than the temperature of the water will rise when the water is heated with the basalt.
Therefore, this difference most likely occurred because the specific heat of water is higher than that of basalt.