Answer: Geologists were incorrect in their assertion that the Earth was getting bigger because of the principle of conservation of mass. According to this principle, the total mass of an isolated system remains constant over time, regardless of any physical or chemical changes that take place within the system.
Explanation: Geologists were mistaken in their belief that the Earth was getting bigger because the processes driving plate tectonics and the dynamics of the Earth's interior do not result in a net increase in the Earth's overall size. The concept of conservation of mass helps us understand that the Earth's mass remains constant despite the dynamic processes occurring on its surface and in its interior