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प्रश्न
Differentiate between Young fold mountains and Old fold mountains.
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उत्तर
Old fold mountains : The fold mountains which were formed about more than 250 million years ago are called old fold mountains. For example, the Urals in Russia, the Appalachians in North America and the Aravalli range in India are old fold mountains. These mountain ranges are of low altitude and have gentle slopes.
Young fold mountains : The most recent phase of mountain building took place about 25 million years ago. The world’s highest mountain ranges were formed during this period. These are known as young fold mountains. They have rugged relief features because they have been subjected to denudation for a comparatively short period only.
संबंधित प्रश्न
Give one example of young fold mountains.
Give an example of residual mountains.
Give one chief characteristic of the fold mountains.
Give one example of a rift valley.
Give reasons for the following: Young fold mountains are liable to Earthquakes and Volcanic action.
Tick the correct answers:
Glaciers are found in ____________
Fill in the Blank:
The Ural mountains in ______ have rounded features and low elevation.
Fill in the Blank:
______ in the Pacific Ocean is an undersea mountain.
State whether the following sentence is true (T) or false (F).
As we go higher, the climate becomes hotter.
How many types of mountains are there? Write briefly about each of them with the help of diagrams.
