The native Americans used natural resources in every aspect in there lives. They used deerskin as clothing. Shelter was made from the material around them (leaves,saplings,animal fur, small branches. Native people of the past hunted, fished, and farmed.
How to make your bed:
Step one: Remove all bed sheets, blankets, and pillows.
Step two: Put a sheet on your bed
Step three: put your blanket on
Step four: Put your pillows on
all done? I have no idea if this is what you wanted but of well haha
Well fossil fuels are such a largely used resource in the economy it is hard to transition from it since its so depended on for many things.
Honestly, none. The union didn't really have any agricultural advantages over the Confederacy, in fact, it can be argued that agriculture was one of the biggest disadvantages of the union.
