D. a new substance is formed. if it is chemical change then it is actually changing to something new. In this case a new substance is formed. It is a completely different substance from what you started out with.
Answer:
understanding the structure of the earth is important to developing the ecosystem and allowing favorable conditions to occur naturally
?????????????? I need more info
Answer:
monaco
Explanation:
gshhshwhhwhwhshwhahayyayayaya