निर्माण कार्य में बड़े पैमाने पर प्रयोग किया जाने वाला ग्रेनाइट पत्थर किस प्रकार की चट्टान के अंतर्गत वर्गीकृत किया जाता है?

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?