Question

Q5. Distinguish between
(a) Block Mountain and Fold Mountain
(b) Primary and Secondary Seismic
Waves
(c) Earthquakes and volcanoes​

Answer 1

Explanation:

1. Block mountains are formed due to faulting which is caused when the horizontal movements within the earths crust move away from each other.
2. Fold mountains are formed due to folding which occurs when the horizontal movements within the earths crust move towards each other.
3. Secondary waves rock small buildings back and forth as they pass. Secondary waves can travel through rock, but unlike primary waves they cannot travel through liquids or gases. ...
4. As a primary wave passes through a material, the volume and density of the material change slightly.
5. Volcanoes form at Earth's surface whereas earthquakes originate from deeper within the crust. ...
6. Volcanoes are formed by release of gas and magma.
7. Earthquakes are caused by movement along a fault. Volcanoes lead to the formation of new rock whereas earthquakes simply cause waves which disturb the rock.

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