Answer:
Explained
Explanation:
For a system to be closed there should only be energy interaction and not mass interaction with surroundings. In Case of Earth there is both Energy interaction with Sun as well as mass interaction. Mass interaction takes place in form of meteoroids, asteroids and comets attack on the Earth atmosphere once in while. The famous asteroid theory about the extinction of dinosaur is an example of mass interaction. Therefore we can say that earth is not a close system but an open system.
