Topic: Distribution of key natural resources across the world (including South Asia and the Indian subcontinent)
1) What is the sub-terranean twin river system? Discuss with reference to the Amazon-Hamza twin river system. (250 words)
Why this question:
The question is from the static portions of GS paper I.
Key demand of the question:
One should explain the concept of sub-terranean twin river system in detail and highlight the significance of Amazon-Hamza twin river system.
Discuss – This is an all-encompassing directive – you have to debate on paper by going through the details of the issues concerned by examining each one of them. You have to give reasons for both for and against arguments.
Structure of the answer:
Define twin river system – Two rivers flowing at different levels in the same region, i.e., on the ground surface and below the ground surface but following the same direction and the gradient is called the twin river system.
Start by explaining the fact that it is an unusual geological happening. Such a river system has been discovered in 2011 in Brazil, called the Amazon-Hamza river system. Hamza river is a subterranean river, which is flowing below the Amazon River.
Then move on to discuss key features of Amazon-Hamza twin river system.
Explain How Amazon and Hamza are two different rivers?
Conclude that due to differences in flow, level and source of water these two rivers have been considered different and have been named as a subterranean twin river system.