geomorphology & earth landforms section 8 MCQ Questions & Answers Detailed Explanation

Answer: (c)

The Himalayas are among the youngest mountain ranges on the planet and consist mostly of uplifted sedimentary and metamorphic rock.

They are Fold Mountains which were formed due to a continental collision or orogeny along the convergent boundary between the Indo-Australian Plate and the Eurasian Plate.

Answer: (d)

Shale, sandstone and limestone are classic examples of sedimentary rocks; Marble is a type of metamorphic rock. It is a non-foliated metamorphic rock composed of recrystallized carbonate minerals, most commonly calcite or dolomite.

Answer: (c)

Karst topography, a landscape formed from the dissolution of soluble rocks such as limestone, dolomite, and gypsum, characterized by underground drainage systems with sinkholes and caves. A sinkhole is a depression or hole in the ground caused by some form of collapse of the surface layer.

They are common where the rock below the land surface is limestone or other carbonate rock, that can be dissolved naturally by circulating groundwater.

Answer: (d)

Answer: (a)

Answer: (d)

A levee, dike, dyke or flood bank is a broad, low embankment built up along the banks of a river channel during floods.

Levees are usually parallel to the way the river flows, so levees can help direct the flow of the river. Levees can also be artificially created or reinforced.