Respuesta :
The observation stated that in the question shows the principle or law of the conservation of mass.
What is the law of conservation of mass?
The law of conservation of mass shows that mass can neither be created nor destroyed. This implies that the mass of the body must always remain the same.
Thus, the observation stated that in the question shows the principle or law of the conservation of mass.
Learn more about conservation of mass:https://brainly.com/question/13383562?
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