The answer is A.
Bc it’s raining and the temperature goes to freezing or below then the rain can turn into snow and typically temperature decreases naturally at night (or evening in this case)
Answer:
square and circle connected by a line
Explanation:
The answer is...
<u>Closed</u> ecosystems do not experience any new input or output of energy and/or material.
I hope this helps! :)
The substance is substrate