Answer:
in the wire last one is right
Answer:
An ecosystem is a community of species.
Explanation:
i hope this helps i tried^^
All matter is made up of particles called atoms and molecules (as opposed to being continuous or just including particles). On the following page, the idea is stated as one of four concepts in Dalton's theory: “All matter is composed of tiny, indivisible particles called atoms” (p. 158s).
H2O became a vapor when heated because thats the only one that can go back to its normal state, which is what a physical change is.