This process is ideal for creating more than one, similarly configured activity or resource for consistency of content.
Navigate to the course you want to duplicate a resource or activity in.
Turn Editing on
Locate the item you want to duplicate.
Click the Edit menu for it.
Wait for the item to duplicate- depending on how much content like images are present this may take a little while.
The second/lower listed item is the new one.
Repeat as desired or move your newly duplicated activity or resource where desired.