Question

The Indo Gangetic Plains of India are fertile due to ________.
a.the heavy and timely rains and forests.
b.alluvial soils brought by the rivers from the mountains.
c.hard labour of the farmers over the generations
d.better irrigation facilities

Answer 1

Hint: The Indo- Gangetic Plains are named after the Indus and the Ganga river. This area is the most fertile plains of India and includes a large number of urban areas.

Complete Answer: The Indo-Gangetic Plains of India consists largely of alluvial deposits which are brought down by the rivers originating from the Himalayas and the peninsular region. The alluvial soil is fertile in nature. The rich deposits of this soil make this area suitable for agriculture. This area is the most farmed lands of the world as the soils have the capability to grow any crop of the tropical and temperate regions.

 The Indo - Gangetic plains are flat and there are many rivers flowing out of it which makes it instrumental for irrigation purposes. The South-west monsoon brings rain to this region which is very suitable for general agriculture.

Looking at the given options:

Option a: Heavy and timely rains and forests are not the feature of tropical forests and it has nothing to do with making the Indo-Gangetic plains fertile. This features the incorrect answer.

Option b: Alluvial soils brought by the rivers from the mountains. Alluvial soils are present in Indo-Gangetic Plains. This is the correct answer.

Option c: Hard labour of the farmers over the generations isn't a feature which states the fertility of the Indo-Gangetic plains. This is an incorrect answer.

Option d: Better irrigation facilities doesn't indicate that the Indo-Gangetic plains are fertile. This is an incorrect answer.

So, the correct answer is option b.

Note:
-The Indo-Gangetic belt is the world's most extensive Plains. It is often termed as the ‘Granary of India’.
-The region contains the subcontinent’s richest and most densely populated areas as 40 % of theIndia's population , reside in the areas under the Indo-Gangetic Plains.