Which of the following is the longest mountain range above sea level in the world?

The crescent-shaped sand dunes found in Sam, Jaisalmer are scientifically known as:

With reference to fjords, consider the following statements: I. They are deep, narrow inlets carved mainly by glaciers and later occupied by seawater. II. The shallow sill near their mouth is generally associated with glacial deposition rather than with tectonic uplift alone. III. They are chiefly associated with high-latitude or formerly glaciated coasts, rather than with humid tropical landscapes. How many of the statements given above are correct?

Match List-I (Stages of Davisian Geomorphic Cycle) with List-II (Associated features) and select the correct code: List-I1. Initial stage2. Youthful stage3. Mature stage4. Old stage List-II a. Potholes and V-shaped valleys b. Monadnocks c. Rapid upliftment of landmass d. Meandering and valley widening

Which one of the following plains can be classified as a structural plain?

Gently inclined bedrock surfaces formed at the foot of mountains in arid and semi-arid regions are termed as:

Headward erosion is a geomorphic process primarily associated with which of the following Agents?

Which of the following mountain ranges is classified as a remnant block/fold mountain that did NOT originate from a geosyncline?

In W.M. Davis's geographical cycle of erosion, what do the upper curve and lower curve represent respectively?