Which situation is an indication that a chemical change has occurred? a. heat is released. b. no color change occurs. c. no heat is released. d. the temperature does not change.

This large tectonic plate is bounded on three sides by whats know as the ring of fire. what is the name of this tectonic plate? a) pacific plate b) eurasian plate c) north american plate d) indo- australian plate plz it's science but there's no option for science so i picked chemistry

List four observations that indicate that a chemical reaction may be taking place

How far is the region from the equator or control climate