Question

Two main forces of diastropism
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Answer 1

Answer:

Endogenic forces and internal forces

Explanation:

Endogenic forces or endogenetic forces are the pressure that originates inside the earth, therefore also called internal forces. These internal forces lead to vertical and horizontal movements and result in subsidence, land upliftment, volcanism, faulting, folding, earthquakes, etc.

Answer 2

Explanation:

There are various theories of the cause of diastrophic movement such as being the result of pressures exerted by convection currents in the mantle or the rise of magma through the crust. Other deformations are caused by meteorite impact and combinations of gravity and erosion such as landslides and slumping. The movement of solid material on the earth crust produces some forces which are refer as diastrophic. These forces are also known as constructive forces. The processes which includes movement, elevate or build portion of earth crust fall under the process of diastrophic.

example. (i) orogenic processes involving mountain building through severe folding and affecting long and narrow belts of the earth's crust;

(ii) epeirogenic processes involving uplift or warping of large parts of the earth's crust;

(iii) earthquakes involving local relatively minor movements;

(iv) plate tectonics