Bhabar region:
The Bhabar region is a narrow belt of about 8-10 km in width that lies at the foothills of the Himalayas. It is characterized by porous, pebbly soil and sparse vegetation. The region acts as a natural barrier and absorbs the water of the rivers flowing from the mountains.

Terai region:
The Terai region is situated south of the Bhabar region and is a fertile belt with rich alluvial soil. It is known for its dense forests, grasslands, and wetlands. The region receives heavy rainfall and is suitable for agriculture.

Differences between Bhabar and Terai region:
- Location: The Bhabar region is located at the foothills of the Himalayas, while the Terai region is situated south of the Bhabar region.
- Soil: Bhabar region has porous, pebbly soil, whereas the Terai region has fertile alluvial soil.
- Vegetation: Bhabar region has sparse vegetation, while the Terai region is known for its dense forests, grasslands, and wetlands.
- Water absorption: The Bhabar region acts as a natural barrier and absorbs water from the rivers, whereas the Terai region receives heavy rainfall.
- Agriculture: The Terai region is suitable for agriculture due to its fertile soil, while agriculture is challenging in the Bhabar region due to its rocky terrain.
In conclusion, the Bhabar and Terai regions have distinct characteristics in terms of location, soil, vegetation, water absorption, and agriculture suitability.