29 March : Daily Current Affairs Quiz

Answer: Option A - An ESA mission that mapped the Milky Way in 3D for a decade

Explanation:

• The Gaia space observatory, launched by the European Space Agency (ESA) in 2013, aimed to create the most precise 3D map of the Milky Way.
• Over a decade, it recorded 3 trillion observations of 2 billion celestial objects.
• Gaia significantly advanced knowledge of our galaxy’s structure, evolution, and black holes before its official shutdown on March 27, 2025.

Answer: Option D - A manned submersible for deep-sea exploration and resource mapping.

Explanation:

• Matsya-6000 is India’s first manned deep-sea submersible, designed for exploring underwater resources at depths of up to 6000 meters.
• It features a titanium alloy personnel sphere, robotic arms, high-resolution imaging, and life support systems for 12-hour operations, with emergency endurance of 96 hours.
• Developed under the Deep Ocean Mission, it enhances India's deep-sea exploration capabilities, supporting scientific research and resource mapping in the Indian Ocean.

Answer: Option C - Electrolysis using renewable energy

Explanation:

• Green hydrogen is produced through electrolysis using renewable energy sources like solar or wind power.
• This process splits water into hydrogen and oxygen without emitting carbon dioxide, making it a sustainable alternative to fossil fuels.
• Unlike grey or blue hydrogen, which rely on fossil fuels, green hydrogen plays a crucial role in reducing carbon emissions and advancing clean energy transitions globally.

Answer: Option B - An AI-powered drone system for early forest fire detection

Explanation:

• Silvaguard is an AI-based autonomous drone system developed by Dryad Networks for early forest fire detection.
• It works with the Silvanet system, a solar-powered wireless network enabling communication in remote forests.
• Using AI-powered sensors, it detects wildfire smoke while minimizing false alarms.
• Once a fire is detected, drones autonomously assess and assist in suppression, significantly reducing response time and preventing large-scale forest destruction.

Answer: Option A - Tradable permits that allow entities to emit a certain amount of greenhouse gases

Explanation:

• Carbon credits are market-based instruments that permit holders to emit a specified amount of greenhouse gases.
• Organizations reducing emissions below their allowed limit can trade surplus credits.
• This mechanism incentivizes emission reductions, promotes sustainability, and supports climate change mitigation.

Carbon credit markets help industries transition to cleaner technologies while maintaining economic competitiveness in a regulated framework