Mixing water and sugar is a physical change. A physical change is just a change in the form of the substance, whereas a chemical change is when the substance itself changes… chemically. An easy way to figure out which is which is trying to "undo" the change. If it can be undone, it is physical.
First, you need to change meter to centimeter. So the volume is 1000*100*1=10^5 cm3. And the mass is 0.62*10^5=6.2 *10^4 g.
Answer: The earth is made up of three different layers: the crust, the mantle and the core. This is the outside layer of the earth and is made of solid rock.
Explanation: hope this helps.