All of the following trees are found in the North Central Plains except A. elm trees
b. oak trees
c. cherry trees
d hickory trees

A. Elm Trees

Explanation:

Oak trees, Cherry trees, and Hickory trees are all found in the North Central Plains.

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the united states has a federal government. the president is the head of the federal government of the united states. however, each state forms its government for administration purposes. the powers of the state governments are exercised within restricted state boundaries. and citizens participate in this government by voting.