अपशल्कन (Exfoliation) के संबंध में निम्नलिखित कथनों पर विचार कीजिए: 1. अपशल्कन एक परिणाम है, कोई विशिष्ट अपक्षय प्रक्रिया नहीं। 2. यह क्रिस्टलीय चट्टानों में अधिक सामान्य है। 3. यह उन चट्टानों में अधिक होता है जिनकी तापीय चालकता कम होती | नीचे दिए गए कूट से सही उत्तर चुनिए।

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?