Question

The largest delta in the world is _______.
a.Mahanadi Delta
b.Ganga-Brahmaputra Delta
c.Nile Delta
d.Godavari Delta

Answer 1

Hint: The largest river delta in the world is the one in the region of Bengal, and known by the name of Sundarbans.

Complete Step by Step answer: The river deltas mentioned in the question are quite large and are mostly in India.
Let’s look at our options one by one:
a.Mahanadi Delta - The Mahanadi river delta is in the state of Odisha and the river drains through the states of Chhattisgarh and Odisha for a length of about 900 kilometers. However, since it is a non-glacial river, it carries less water and sediments than the glacial rivers of the northern plains. So, it is an incorrect option.
b.Ganga-Brahmaputra Delta - The Ganga river and drains the region of northern plains and the Brahmaputra river drains the region of Southern Tibet to form a common drainage basin in the region of Bengal and Bangladesh. It spans across the coastline of two countries, and is the most populous delta in the world. It is also known as Sundarbans delta. So, it is the correct option.
c.Nile Delta - The Nile river flows from Sudan to Egypt, across the Sahara desert and it carries very little of sediments to be deposited in the Mediterranean Sea. Hence, the delta is formed, but is not as large as the drainage area is not so fertile. So, it is an incorrect option.
d.Godavari Delta - The Godavari river delta is one of the largest river deltas in the Indian Subcontinent. It flows through the region of Deccan and carries very little sediments as compared to the rivers flowing through the plain areas of the north. So, it is an incorrect option.

 Note: The largest inland delta is the Okavango Delta in the Kalahari Desert. It is also the world’s second largest delta. So, the candidates must read the question and the options carefully while attempting such tricky questions.