4-5th May 2025 Current Affairs MCQs | UPSC PSC SSC

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1. What triggers turbidity currents in submarine canyons?
a) Coral reef bleaching
b) Monsoons
c) Earthquakes and landslides
d) Volcanic eruptions

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Answer: c) Earthquakes and landslides
Turbidity currents are usually triggered by seismic or geological disturbances like slope failure or submarine landslides.

2. What is the function of turbidity currents in deep-sea environments?
a) Prevent marine erosion
b) Create salt domes
c) Deposit sediments and shape ocean topography
d) Dissolve carbonates

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Answer: c) Deposit sediments and shape ocean topography
Turbidity currents play a major role in transporting sediments and reshaping the sea floor.

3. Which underwater structure is most commonly shaped by turbidity currents?
a) Oceanic trenches
b) Submarine ridges
c) Submarine canyons
d) Guyots

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Answer: c) Submarine canyons
They are carved and deepened primarily through erosional action by turbidity currents.

4. Where is the Whittard Canyon located?
a) Mediterranean Sea
b) Bay of Bengal
c) Off the coast of Ireland
d) Pacific Ocean

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Answer: c) Off the coast of Ireland
The study focused on Whittard Canyon off Ireland where microplastics were traced into deep-sea sediment.

5. What is a reef primarily composed of?
a) Salt
b) Coral skeletons
c) Volcanic rock
d) Sandstone

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Answer: b) Coral skeletons
Reefs are formed from the calcium carbonate skeletons of coral and other marine organisms.

6. Angola shares its southern border with which country?
a) Zambia
b) Democratic Republic of Congo
c) Namibia
d) Mozambique

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Answer: c) Namibia
Namibia borders Angola to the south.

7. What is the capital of Angola?
a) Nairobi
b) Kinshasa
c) Luanda
d) Maputo

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Answer: c) Luanda
Luanda is Angola’s capital and major Atlantic port city.

8. Which is the tallest mountain in Angola?
a) Mount Meru
b) Mount Moco
c) Mount Kilimanjaro
d) Mount Kenya

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Answer: b) Mount Moco
It is the highest point in Angola.

9. What defines altermagnets in material science?
a) Ferromagnetic order
b) Net magnetisation
c) Momentum-dependent spin splitting without spin–orbit coupling
d) Diamagnetic stability

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Answer: c) Momentum-dependent spin splitting without spin–orbit coupling
Altermagnets exhibit unique spin splitting without net magnetization or SOC.

10. What is the key application area for altermagnets?
a) Biochemistry
b) Agriculture
c) Spintronics
d) Hydrology

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Answer: c) Spintronics
They are useful in spin-based electronics due to their special properties.

11. Valleytronics is associated with which of the following?
a) Atomic bonding
b) Chemical gradients
c) Energy band minima
d) Cell signaling

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Answer: c) Energy band minima
Valleytronics manipulates valley indices in band structures to store data.

12. Where is Campi Flegrei located?
a) France
b) Italy
c) Greece
d) Turkey

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Answer: b) Italy
It is an active volcanic caldera near Naples, Italy.

13. What is a bradyseismic event associated with Campi Flegrei?
a) Sudden earthquakes
b) Tsunami formation
c) Ground uplift or subsidence
d) Rockslides

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Answer: c) Ground uplift or subsidence
Bradyseism refers to slow movement due to magma under the surface.

14. When did Campi Flegrei last erupt?
a) 79 AD
b) 1944
c) 1538
d) 1991

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Answer: c) 1538
The eruption formed Monte Nuovo.

15. What causes microgravity in space?
a) Absence of mass
b) Excess gravity
c) Continuous free-fall orbit
d) Zero-pressure environment

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Answer: c) Continuous free-fall orbit
All orbiting objects fall at the same rate, creating a microgravity effect.

16. Which body region tends to warm up more in microgravity?
a) Hands
b) Feet
c) Core and head
d) Arms

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Answer: c) Core and head
Due to altered blood distribution and thermoregulation in space.

17. Which Indian institute developed the microgravity thermoregulation model?
a) IIT Delhi
b) ISRO
c) IIST
d) DRDO

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Answer: c) IIST
The Indian Institute of Space Science and Technology developed the model.

18. What is ICAR’s primary mandate?
a) Space technology
b) Education statistics
c) Agricultural research and education
d) Consumer welfare

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Answer: c) Agricultural research and education
ICAR coordinates research in agriculture, fisheries, and animal sciences.

19. When was ICAR originally founded?
a) 1930
b) 1929
c) 1947
d) 1952

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Answer: b) 1929
Established as the Imperial Council of Agricultural Research.

20. What yield advantage does DRR Dhan 100 Kamala offer?
a) 5% more
b) 10% more
c) 25% more
d) 50% more

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Answer: c) 25% more
The new genome-edited rice has 25% higher yield.

21. In which Indian state is Lairai Devi Temple located?
a) Maharashtra
b) Gujarat
c) Goa
d) Karnataka

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Answer: c) Goa
It is located in Shirgao village in North Goa.

22. What is the main ritual at Lairai Devi Jatra?
a) Water fasting
b) Bonfire dance
c) Fire-walking
d) Chariot pulling

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Answer: c) Fire-walking
The ritual is known as Agnidivya.

23. What is the Abdali missile’s current claimed range?
a) 200 km
b) 300 km
c) 450 km
d) 500 km

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Answer: c) 450 km
Recent tests claim a doubling of its previous range.

24. What type of missile is Abdali?
a) Intercontinental
b) Hypersonic
c) Short-range ballistic missile
d) Cruise missile

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Answer: c) Short-range ballistic missile
It is designed for battlefield use.

25. What is IICT’s primary focus area?
a) Atomic energy
b) Digital marketing
c) Creative technologies like animation and gaming
d) Agriculture

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Answer: c) Creative technologies like animation and gaming
The institute focuses on AVGC-XR sectors.

26. Where will IICT’s permanent campus be located?
a) Pune
b) Chennai
c) Film City, Mumbai
d) Bangalore

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Answer: c) Film City, Mumbai
It will be built at Dadasaheb Phalke Chitranagari.

27. What is insider trading?
a) Selling expired stocks
b) Buying or selling shares using confidential information
c) Trading without a PAN card
d) Cross-border share transfer

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Answer: b) Buying or selling shares using confidential information
It gives unfair advantage to insiders.

28. Which regulator oversees insider trading in India?
a) RBI
b) IRDA
c) SEBI
d) CCI

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Answer: c) SEBI
SEBI regulates and prosecutes insider trading cases.

29. What law governs insider trading in India?
a) SEBI Act, 1992
b) Companies Act, 2013
c) SEBI (Insider Trading) Regulations, 2015
d) Income Tax Act

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Answer: c) SEBI (Insider Trading) Regulations, 2015
These rules govern all insider trading conduct in Indian markets.

30. Who was recently named in an Adani insider trading allegation?
a) Rajiv Jain
b) Pranav Adani
c) Vinod Adani
d) Gautam Adani

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Answer: b) Pranav Adani
He allegedly shared price-sensitive information.

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