आपातकालीन व्यवस्थापनासाठी उदा. पूर, भूकंप, वणवे, वादळे यांची माहिती मिळण्याकरता उपग्रहांचा चांगला उपयोग होतो. यात खास "पृथ्वीचे निरीक्षण" करण्यासाठी पाठवलेल्या उपग्रहांना "रिमोट सेन्सिग सॅटेलाइट" म्हणतात. भारताकडे सध्या कार्यरत असणारे असे एकूण उपग्रह__

The correct answer is Option A (more than any country in the world).

Key Points:
• India's Civil Remote Sensing Constellation (IRS):
• Starting with IRS-1A in 1988, ISRO built one of the largest domestic constellations of Earth Observation / Remote Sensing satellites in civilian operation worldwide (including RESOURCESAT, CARTOSAT, RISAT, OCEANSAT, and INSAT-3D).
• Global Standing:
• In official ISRO publications and Department of Space annual reports referenced during the period, it was formally asserted that India possesses the largest constellation of civilian remote sensing satellites in operation in the world for natural resources and disaster management.
• Therefore, Option 1 (more than any country in the world) directly reflects this official civil fleet benchmark and matches the answer key.
• Key Takeaway: India operates the world's largest civilian constellation of active remote sensing satellites for natural resource and disaster management.