Ecoregions of Texas
I do not understand any of these questions and my teacher gave me no pre-reading to do so I am stuck.

Explain which abiotic or biotic factor or combination of factors would be the most influential in creating the ecoregions in west Texas.

Explain which abiotic or biotic factor or combination of factors would be the most influential in creating the ecoregions in east Texas.

Why does vegetation vary so greatly from west to east and from north to south in Texas?

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