Q 1(c). What is Global Positioning System (GPS)? Explain its geological applications. (UPSC 2025, 10 Marks, 150 Words)

Theme: "GPS and Its Geological Applications" Where in Syllabus: (Geology)
ग्लोबल पोज़ीशनिंग सिस्टम (जी. पी. एस.) क्या है ? इसके भूवैज्ञानिक उपयोगों को समझाइये ।