The Indo-Gangetic Plains are formed by the alluvial deposits of three major river systems. Which of the following characteristics is NOT true for the Indo-Gangetic Plains?
Show answer & explanation
Correct answer: C
Explanation
Solution: The correct answer is Uneven terrain with many hills.
Explanation:
☛ The Indo-Gangetic Plain is a vast, remarkably flat, and featureless depositional plain, not an uneven terrain with hills.
☛ It has been formed by the continuous deposition of alluvial soil brought down by three major Himalayan river systems: the Indus, the Ganga, and the Brahmaputra, along with their tributaries.
☛ Due to deep alluvium and favorable climatic conditions, the soil is exceptionally fertile, making it the agricultural backbone of India.
☛ The abundance of water, flat topography, and high agricultural productivity have made this region one of the most densely populated regions in the world.
☛ During the monsoon season, high river discharge and heavy siltation make several parts of these plains (especially in Assam, Bihar, and West Bengal) prone to frequent floods.
Extra Exam-Relevant Facts:
☛ Geomorphologically, the Northern Plains are categorized from north to south into four distinct belts: Bhabar, Terai, Bhangar, and Khadar.
☛ Bhabar: A narrow belt (8 to 10 km wide) parallel to the Shivalik foothills made of pebbles, where rivers and streams disappear underground.
☛ Terai: A wet, swampy, and marshy zone lying south of the Bhabar belt where underground streams re-emerge.
☛ Bhangar: The older alluvium region situated above the flood levels of rivers, which often contains calcareous deposits known as Kankar.
☛ Khadar: The newer, younger alluvium formed by annual floods, which is highly fertile and ideal for intensive agriculture.
Important One-Liners for Upcoming Exams:
☛ Which river system forms the westernmost part of the Great Indian Plains? → The Indus river system
☛ What are the calcareous soil concretions found in Bhangar plains called? → Kankar
☛ Which delta formed by the Ganga and Brahmaputra is the largest delta in the world? → Sundarbans Delta
☛ In which belt of the Northern Plains do rivers submerge and disappear underground? → Bhabar
☛ What is the fertile, newer flood plain alluvium known as in North India? → Khadar