Hey there!
Chemical changes are changes in object's chemical compounds and chemical compositions, and often can't be reversed.
Here's an example:
If you have a piece of paper and you happen to burn it, that can't be reversed.
In other words, it can't be "un-burned". Nothing can restore it to its previous state.
Hopefully this helped!
Answer:
the highest is "A" and the lower is "C"
It’s how many times deez nuz go into that puh
Answer
I'm pretty sure it would be (Insects, and microorganisms)
Explanation:
If its not correct I'm sry
Answer:
so the earth has an atmosphere, which holds in all the oxygen, it has gravity, and it has the green house effect, causing the earth's warmth to stay in it's atmosphere
