Respuesta :
Answer : Option B) The molecules in the thermometer’s liquid spread apart.
Explanation : When a thermometer was placed in water to measure the water’s temperature. the molecules in the thermometer liquid which is often mercury spreads apart and rises, this shows a temperature increase in the thermometer.
The liquid in the thermometer rises because the molecules in the thermometer’s liquid spread apart.
What is thermometer?
A thermometer is a device that is used to measure temperature. Usually, a thermometric substance enables a thermometer to measure temperature. The thermometric substance in this thermometer is a liquid - in - glass.
The liquid in the thermometer rises because the molecules in the thermometer’s liquid spread apart.
Learn more about thermometer: https://brainly.com/question/2275528