Geography
Which amongst the following highlands are highly eroded by the agents of gradation and have gentler slopes, rounded tops and sculptured domes?
- Young fold mountains
- Old fold mountains
- Residual mountains
- Volcanic plateaus
Earth's Landforms
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Answer
Old fold mountains
Reason — Old fold mountains, such as the Appalachians, the Urals and the Aravallis, are highly eroded by the agents of gradation. As a result, they have gentler slopes, rounded tops and sculptured domes.
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Related Questions
Assertion (A): External forces or Exogenic forces are Destructive Forces.
Reason (R): They produce relief such as mountains, plateaus, plains, lakes and big faults.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R does not explain A.
- A is true but R is false.
- A is false but R is true.
Assertion (A): Residual mountains are also called mountains of denudation.
Reason (R): Denudation and erosion by natural agents cause mountains to be lowered.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R does not explain A.
- A is true but R is false.
- A is false but R is true.
Mountains which are subjected to weathering and erosion for a long time are lowered down:
- Old fold mountains
- Volcanic plateaus
- Relict mountains
- Intermontane plateaus
Which of the following is/are correctly matched?
- Young fold mountains: Himalayas, Alps
- Old fold mountains : Urals, Aravalli
- Residual mountains : Nilgiri, Rajmahal Hills
- All of the above.