Answer: the mantle B
Explanation: Largest layer resulting in biggest mass.
Answer:
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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!
What is the choices for the blank?