सैम, जैसलमेर में पाए जाने वाले अर्धचंद्राकार बालू के टीलों (सैंड ड्यून्स) को वैज्ञानिक रूप से किस नाम से जाना जाता है?

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