A rift valley is formed mainly due to:

A rift valley is formed mainly due to: (A) forces of tension in the earth's crust (B) the subsidence of the floor of a river valley (C) the valley for

A rift valley is formed mainly due to:

(A) forces of tension in the earth's crust 

(B) the subsidence of the floor of a river valley 

(C) the valley formed after the formation of fold mountains 

(D) the deepening of a valley by ice action 


Answer: (B) the subsidence of the floor of a river valley

A rift valley is formed mainly due to: (A) forces of tension in the earth's crust (B) the subsidence of the floor of a river valley (C) the valley formed after the formation of fold mountains (D) the deepening of a valley by ice action