Answer:
D. exchanges no matter with other systems.
Explanation:
When you think of closed, think of something like a closed circuit. Nothing is effecting it from the outside and is not that common in nature. Most biological organisms are open systems such as us humans.
<span>Dining out
when they are entered into the royal navy it is called dining out</span>
I believe it is A or B. I’m quite torn. I did research to back my answer up and it’s said that the atmosphere would become less and less oxygenated, perhaps becoming unbreathable for humans. The temperatures would also become lower, The land would fry.
