Question

Which of the following statements are true in context of Rift Valley?

X: Rift valleys are usually formed adjoining the block mountains.

Y: Rift valleys are formed due to the diverging movement of the tectonic plates.

Z: Rift valleys are formed as a result of faulting in the Earth’s crust.

Options

• X and Y are true.

• X and Z are true.

• Y and Z are true.

• X, Y and Z are truе.

Answer 1

X, Y and Z are truе.

Explanation:

Rift valleys form adjoining block mountains (horsts) due to faulting in the earth’s crust caused by diverging (tensional) movements of tectonic plates. The valley (graben) drops down while the adjacent block mountains uplift, confirming all three statements are true.