True
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false
false
true
false
true
An area with unifying characteristic is called as a region. The region is a broad geographic area, which is differentiated from other because of the similar features. In a region one or more than one types vegetational climax might be present. It is the continuous and extensive part of the surface. The area in a region is indefinite.
Hence, the given blank can be filled with region.
I think it is the food chain
I believe the answer is fossil fuels I hope this helps you out! :)