Final answer:
The correct comparison of the four categories of the northern plain of India on the basis of physiographic divisions is Bhabar, Terai, Bangar, Khadar. The correct answer is A.
Step-by-step explanation:
On the basis of physiographic divisions in India, the correct comparison of the four categories of the northern plain of India is:
Bhabar: A narrow strip of land located at the foothills of the Himalayas. It consists of rocky, porous soil and acts as a natural barrier against erosion and floods.
Terai: An area of marshy and swampy land that lies south of the Bhabar. It is characterized by thick forests and is prone to flooding.
Bangar: The lower terrace of the northern plain. It is made up of older allu vium and is well-drained, fertile land.
Khadar: The newer and fertile floodplain of the northern plain. It is formed by the deposition of fresh allu vium by rivers during floods.
Therefore, the correct answer is: A) Bhabar, Terai, Bangar, Khadar. The correct answer is A.