UPSC Prelims Facts – 29 April 2025

Prelims FACTS

Food and Agriculture Organization (FAO) launched Accelerating Innovative Monitoring for Nature Restoration (AIM4NatuRe).

  • Launched by FAO on Earth Day 2025 to enhance global monitoring of ecosystem restoration.
  • Objective: Supports Target 2 of the Kunming-Montreal Biodiversity Framework—restoring 30% of degraded ecosystems by 2030.
  • Technology-driven: Uses satellite data, AI, and standardized frameworks for transparent reporting.
  • Global impact: Expands FAO’s AIM4Forests program to include wetlands, grasslands, and marine ecosystems

At least 20 red-crowned roofed turtles were re-introduced in the river Ganga in Uttar Pradesh.

  • Freshwater turtle native to South Asia.
  • Conservation status: Critically Endangered (IUCN), listed under CITES Appendix I.
  • Habitat: Found in deep-flowing rivers with terrestrial nesting sites; National Chambal Sanctuary is a key habitat.
  • Threats: Habitat loss, drowning in illegal fishing nets, poaching, and pollution

China seizes disputed Tiexian Reef

  • Part of the Spratly Islands in the South China Sea, near Thitu Island (Pag-asa Island).
  • Geopolitical significance: Recently seized by China, escalating tensions with the Philippines.
  • Strategic importance: China claims it as a natural feature entitled to a territorial sea, boosting its presence in the region.
  • Military context: Incident coincided with US-Philippines joint military drills (“Balikatan” exercises)

Recently, a explosion took place in a shipment of “sodium perchlorate rocket fuel” (used in missiles) at Iran’s Shahid Rajaee port, a part of Bandar Abbas Port Complex.

  • Iran’s largest port
  • Situated on the Strait of Hormuz, a critical global oil trade route.
  • Economic role: Handles over four-fifths of Iran’s shipping activity and is a hub for oil exports.

ISRO has successfully conducted the second short hot test of the semi cryogenic engine that will power the Semicryogenic booster stage of the Launch Vehicle Mark-3 (LVM3).

  • Combine the benefits of cryogenic and conventional engines, employing a cryogenic oxidizer (e.g., Liquid Oxygen), along with a hydrocarbon-based fuel (e.g., kerosene).
  • A cryogenic engine utilizes liquid hydrogen as fuel and liquid oxygen as an oxidizer giving 100% efficiency without any greenhouse emissions or pollution.
  • Aims to achieve a balance between performance and operational simplicity by blending cryogenic and non-cryogenic propellants.

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