What type of mountains are the Himalayas?
a) Block Mountains
b) Volcanic Mountains
c) Young Fold Mountains
d) Residual Mountains
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Answer: c) Young Fold Mountains
Explanation
- Young Fold Mountains: The Himalayas were formed when the Indian tectonic plate collided with the Eurasian tectonic plate tens of millions of years ago, causing the Earth’s crust to fold upwards. They are classified as “young” because they are geologically recent (formed around 40–50 million years ago) and are still rising due to ongoing tectonic activity.
Overview of Other Options
- a) Block Mountains: Formed when large areas of the Earth’s crust are broken and displaced vertically along fault lines (e.g., the Vindhya and Satpura ranges in India, or the Black Forest mountains in Germany).
- b) Volcanic Mountains: Created by the accumulation of lava and volcanic material ejected during eruptions (e.g., Mount Kilimanjaro in Africa, Mount Fujiyama in Japan).
- d) Residual Mountains: Formed when older mountain ranges undergo long periods of erosion, leaving behind resistant rock pillars or remnants (e.g., the Aravalli range in India).
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