The process of making organic food molecules in the absence of light
Explanation:
imagine I teach my child at my home , it doesn't involve any commercial purpose . I don't need any money from my child , so that's free market economy.
First, a physical property just identifies it's state, how it looks, color, and that stuff. Let's work on finding that.
⇔ Ability to rust wouldn't work as a physical property. That one changes the substance, making it a chemical change. So, we know that this can certainly be our answer!
