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

Answer: (c)

The Mohorovicic discontinuity usually referred to as the Moho, is the boundary between the Earth’s crust and the mantle. Named after the pioneering Croatian seismologist Andrija Mohorovicic, the Moho separates both the oceanic crust and continental crust from the underlying mantle.

The Moho mostly lies entirely within the lithosphere; only beneath mid-ocean ridges does it define the lithosphere-asthenosphere boundary.

Answer: (c)

Arkose is a detrital sedimentary rock, specifically a type of sandstone containing at least 25% feldspar.

It is commonly coarse-grained and usually either pink or grey (depending on the colour of feldspar).

Answer: (d)

Answer: (d)

Answer: (c)

The prospect of producing electricity from the hydrological resources of the Plateau region lies not, as has been suggested, in the ‘region’s fast-flowing rivers'. The flow rate of most rivers in the region is relatively slow.

However, the sloped topography of the plateau itself provides enormous capacity to generate electricity. All existing and planned hydropower projects in the region are based on the simple engineering principle of utilizing gravity to generate energy from the region’s rivers. The steep escarpments found in the south-eastern portion of the region provide the natural topographical mechanism to subject the region’s water resources to the energy-producing force of gravity.

Answer: (d)