Answer :
I THINK C BECAUSE IF IT IS A GLASS BOX HOW DID A CACTUS GET IN AND NOTHING CAN GET IN OR OUT OF THE BOX SO THERE IS NO CACTUS IN THE BOX
Answer:
The answer is: C. This is a closed system because of no substance and entering or leaving the box.
Explanation:
The most accurate statement if you start from the basis that the cactus is inside a glass box that is completely closed and sealed, you can hardly enter anything, so the best answer is C.
The answer is: C. This is a closed system because of no substance and entering or leaving the box.