geomorphology & earth landforms section 3 MCQ Questions & Answers Detailed Explanation

Answer: (c)

Geos and gloups are features associated with coastal erosion. When a cave roof in the coastal areas collapses a long, narrow inlet or creck develops.

Such deep clefts, which may be 100 feet deep and equally long are called geos.

Answer: (d)

Answer: (a)

Answer: (b)

The concept of periodic random dominance as an aspect of landform evolution carries with it the implication of polygenetic landforms and landscapes where geomorphic system dominance fails to develop.

Indeed, dominance becomes the special case because it is dependent on a particular juxtaposition of tectonic and/ or climatic elements over a protracted interval in a given area.

One estimate places polygenetic landforms over approximately so per cent of the earth’s land surface. Perhaps 20 per cent is experiencing some type of geomorphic system dominance — less than 10 per cent it Antarctica is omitted from the calculations.

Answer: (c)

There are three Peninsular rivers that flow in a rift valley.

Narmada flows westward between the Satpura and Vindhya ranges.

The Tapti River and Mahi River also flow through rift valleys, but between different ranges.

Answer: (c)