Is earth a closed system?

An isolated system is not possible in nature because there is always an exchange of energy between a system and its surroundings. Earth is among the third type, a closed system in which solar radiation comes into the Earth's atmosphere and onto the planet itself, but matter does not leave the Earth. read more

Earth is not considered a closed system (at least not by real scientists). Earth is an open system. Or more precisely a dynamic equilibrium system. It is an open system because particles that currently belong to Earth can reach the escape velocity. As well as trap particles from the outer space. read more