Answer:
3; east
Step-by-step explanation:
The "Sierra Madre Oriental" is known as a mountain range that is located in the "northeastern Mexico" and is considered as a part of the "American Cordillera". The Sierra Madre Oriental is considered as important because irrespective of being surrounded by extremely dry tropical regions, it is being reverted for its "temperate forests and climate". The climate associated with these regions has resulted in eco-regions which are celebrated for animal and plant life.
The correct answer for the given question is "3; east".