I think the best answer that will describe chemical change is the first option. During a chemical change, b<span>oth the identity and the properties of a substance change because new substances are being formed by a chemical reaction. An example is rusting of steel</span>
Answer: Trade winds :)
Explanation: just took the test
Milk is a complex colloidal system.
Light bulb -it produces heat and light
toaster - it produces heat and the metal strips glow producing light
