Question

The tops of block mountains are mostly
a)steep
b)conical
c)flat
d)none of the above

Answer 1

Hint: Landforms that are higher than the surrounding areas with steeper slopes, with a confined summit and relief. There are mainly four types- block, fold, volcanic and residual mountains.

Complete answer: Mountains are formed by internal or endogenic earth movements which cause forces of faulting and tension are called block mountains. Block mountains are formed by down-lifting or uplifting of land in between two parallel faults .
 Let us look at the options given to us-
Option A- steep tops are found in fold mountains. These are formed by force of compression arising from endogenic forces.
Option B- conical tops are found in mountains of volcanic origins. These mountains are formed by volcanic activity and formed by accumulation of volcanic material.
Option C-Flat tops are the correct answer as they are found in block mountains.
Option D- none of the above is incorrect as block mountains have flat tops.

Correct answer is option c.

Note: In block mountains, the uplifted blocks are called horsts and the lowered blocks are called graben. Some examples of block mountains are the Sierra Nevada in North America, Black Forest Mountains in Germany etc.