Latitude and longitude lines form a convenient coordinate system for specifying locations on Earth’s surface. Where is the origin of this coordinate system? (Hint: The east–west origin and north–south origin both need to be identified.)

It maybe because uranus is made of gas but uranus has a solid core in the middle

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.