SCIENCE AND TECHNOLOGY (LAST 3 MONTHS CURRENT AFFAIRS FOR COMPETITIVE EXAMS)

 

1.Which joint satellite mission by NASA and ISRO sent its first radar images of Earth’s surface in August/September 2025?

Answer: NISAR

2. According to one weekly current-affairs list, which of the following was reported as a “Science & Tech” item in September 2025?

A) India launched a National Geothermal Energy Policy.
B) India’s volcano Barren Island erupted twice.
C) ISRO transferred SSLV technology to HAL.
Options: (a) A only (b) B only (c) C only (d) All of A, B & C
Answer: (d) All of A, B & C. 

3. What significant scientific item was introduced by ICMR in August 2025 for rural/emergency care brain-injury diagnosis?

A) Device named “CEREBO”.
B) Device named “CEREBRUS”.
C) Device named “CEREBRAIN”.
D) Device named “CEREB-X”.

Answer: A) CEREBO

4. Which organisation’s “Science & Technology Current Affairs” archive lists separate months such as August 2025, September 2025 etc?

A) GKToday
B) Adda247
C) Testbook
D) All of the above

Answer: A) GKToday.

5. A “Weekly Current Affairs” report for the week 31 Aug-6 Sept 2025 mentioned which astronomical discovery?

A) First direct image of baby planet WISPIT 2 b.
B) Discovery of new quasar at edge of universe.
C) Detection of new gravitational wave source.
D) Launch of new telescope into orbit.

Answer: A) First direct image of baby planet WISPIT 2 b. 

6. In October 2025, which Indian shipyard launched the 6th ASWC SWC ‘INS Magdala’?

A) Mazagon Dock Shipbuilders Limited
B) Cochin Shipyard Limited
C) Garden Reach Shipbuilders & Engineers
D) Hindustan Shipyard

Answer: B) Cochin Shipyard Limited.

7. Which major global index hit a record level of around 424 ppm in 2024, as reported in October 2025?

A) Atmospheric CO₂ levels
B) Methane atmospheric concentration
C) Ozone layer UV index
D) Sea-level rise (mm)

Answer: A) Atmospheric CO₂ levels. 

8. The weekly current affairs for the week ­12–18 October 2025 included which item relating to weather/disaster-forecasting technology?

A) CSIR-AMPRI launching its indigenous SODAR system at IMD Delhi
B) India launching a new cyclone warning satellite
C) National tsunami warning system overhaul
D) India’s first autonomous flood-forecasting drone

Answer: A) CSIR-AMPRI launching its indigenous SODAR system at IMD Delhi. 

9. According to current affairs, India and the EU launched an “ideathon” to fight what?

A) Marine plastic pollution
B) Cyber-security threats
C) Space debris
D) AI misuse in healthcare

Answer: A) Marine plastic pollution. 

10. Which sector’s workers were targeted (in India) by a roadmap released by NITI Aayog in October 2025 to drive inclusive development via AI?

A) Informal workers (~490 million)
B) Formal manufacturing workers (~100 million)
C) Agricultural labourers (~50 million)
D) IT services professionals (~10 million)

Answer: A) Informal workers (~490 million). 

11. What did the weekly report say about India’s only active volcano in September 2025?
A) Barren Island erupted twice.
B) It erupted once and issued major ash cloud warnings.
C) It showed no activity for the whole month.
D) It entered dormancy and was declared inactive.

Answer: A) Barren Island erupted twice. 

12. Which plant (cold-desert “wonder plant”) was featured in August 2025 Science & Tech Current Affairs notes?
A) Seabuckthorn
B) Cactus
C) Edelweiss
D) Artemisia

Answer: A) Seabuckthorn

13.  In August 2025, researchers found that which antibody type can stabilise and neutralise bacterial toxins?

A) IgG
B) IgA
C) IgM
D) IgE
Answer: C) IgM.

14. Which monthly MCQ quiz provider specifically lists “Science & Technology” as a topic heading in August 2025?

A) GKToday
B) Testbook
C) Adda247
D) All of the above
Answer: A) GKToday.

15. A major collaborative Earth-observing satellite (NISAR) will have dual-band radars and can detect changes as small as ___ cm in Earth’s surface?

A) 10 cm
B) 1 cm
C) 5 cm
D) 0.1 cm
Answer: B) 1 cm.

16. According to a weekly current-affairs list, six new dragonfly species were discovered in which location in October 2025?

A) Silent Valley National Park, Kerala
B) Sundarbans, West Bengal
C) Kaziranga National Park, Assam
D) Deccan Plateau region

Answer: A) Silent Valley National Park, Kerala