Question

F Distinguish between the following:
1. Tectonic plateaus and volcanic plateaus.
2. Degradation and aggradation
3. Block and fold mountains
4. Plateaus and plains
5. Volcanic mountains and residual mountains​

Answer 1

Explanation:

Tectonic plateaus are formed from processes that create mountain ranges – volcanism (Deccan Plateau).

A volcanic plateau is formed by numerous small volcanic eruptions that slowly build up over time, forming a plateau from the resulting lava flows.

Aggradation is the deposition process in which depositional area fills with vertical stacking of sediment from the thick layer of water.

Degradation is a process that renders an object useless or less useful over time.

Block mountains are formed due to faulting which is caused when the horizontal movements within the earth's crust move away from each other.

Fold mountains are formed due to folding which occurs when the horizontal movements within the earth's crust move towards each other.

Plain is an un-raised flat area.plain is a flat expanse of land that generally does not change much in elevation.

Plateau is a raised area of land with a flat top.Plateaus can be formed by a number of processes.

Volcanic Mountains are formed when molten rock (magma) deep within the earth, erupts, and piles upon the surface.

Residual mountains are those mountains which have been eroded by the agents of degradation such as winds, rain, frost and running water. The hard rocks that are left behind are called residual mountains.

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Answer 2

Tectonic plateaus —

Tectonic plateaus are formed from processes that create mountain ranges – volcanism (Deccan Plateau), crustal shortening (thrusting of one block of crust over another, and folding occurs. Example: Tibet), and thermal expansion (Ethiopian Highlands).

Volcanic plateaus —

A volcanic plateau is a plateau produced by volcanic activity. There are two main types: lava plateaus and pyroclastic plateaus .