Question

choose the correct answer. in the real world, are there any closed systems on earth? yes, all natural systems are closed. yes, all ecosystems are closed systems. no, none of the systems on earth are closed.

Explanation:

In the real - world context on Earth, all natural systems and ecosystems exchange matter and energy with their surroundings. A closed system is one that does not exchange matter with its surroundings. Since Earth's systems interact with the external environment (e.g., atmosphere exchanges gases with space, ecosystems receive solar energy and exchange materials), none of the systems on Earth are truly closed.

Answer:

No, none of the systems on Earth are closed.