Tectonic plates move on which layers of the Earth? a. Crust and upper mantle b. Crust and mantle c. Upper and lower mantle d. Crust, mantle, outer core

The answer is a.  i hope this

True will be your answer dude

The chemical reactions lab we did is typically called a "copper plating lab,  because the acid solution cleaned the pennies and made the copper look shinier;   the acid solution cleaned the paperclips and made them look like pennies;   &   the copper from the pennies was removed, and then added to the paperclips. 

Special care would be an answer