Final answer:
Agrarian refers to promoting agricultural interests, piedmont refers to land at the foot of a mountain, and fall line refers to the place where rivers descend from a piedmont to a plain.
Step-by-step explanation:
1. Agrarian: organized or designed to promote agricultural interests. Example: The government implemented policies to support and develop the agrarian sector.
2. Piedmont: land at the foot of a mountain. Example: The town is located in the scenic piedmont region, surrounded by beautiful hills.
3. Fall line: place where rivers descend in falls or rivers from a piedmont to a plain. Example: The fall line in this area is known for its impressive waterfalls created by the descent of rivers from higher elevations.
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