While the buffalo was the most important resource, the second most important resource became the horse.
natural
because all their suplies were made of trees
It is the tallest waterfall in the world and it is a water resource and a wildlife refuge.
Two important people from Assyria are Ashurnasirpal the second and Adad Guppi
rice
His second wife, Nancy Davis, and his mother were the two most important people in his life.
It's important to have a second choice so you don't have a hassle when you don't get your first choice, for some people it's easier!
Forest
go to greenhorn plains, on the left second sand pit
the chasm is on the second island in the west river plains.
Continents & ocean are first order. Mountain,pleated & plains are second order of relief features.
The first most important marine resource would be fish and shellfish - they are used for food. After that perhaps the most valuable physical resource would be oil that is drilled from beneath the ocean's floor. This oil is used for the creations of plastics, making gasoline for cars and other modes of transportation, and other things as well.