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Daily-mcqs 04 Apr 2025

Current Affairs MCQs for UPSC & State PSC Exams 04 Apr 2025

Current Affairs MCQs for UPSC & State PSC Exams

Q1:

Consider the following statements regarding aerosols and greenhouse gases (GHGs):

1.    Aerosols have a longer atmospheric lifespan than greenhouse gases.

2.    Aerosols create a temporary cooling effect by scattering sunlight.

3.    Greenhouse gases cause long-term warming by trapping heat in the atmosphere.

4.    A rapid reduction in aerosols without cutting GHG emissions could lead to an increase in global temperatures.

How many of the above statements are correct?

A: Only 1

B: Only 2

C: Only 3

D: All four

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Answer: C

Explanation:

Statement 1 is incorrect: Aerosols last for days to weeks, while GHGs persist for decades to centuries.

Statements 2, 3, and 4 are correct: Aerosols reflect sunlight (cooling effect), GHGs trap heat (warming effect), and cutting aerosols without reducing GHGs could cause warming.

Correct answer: (c) Only three

Q2:

Which of the following best describes Odonata?

A: A group of birds found in tropical regions

B: A class of amphibians with aquatic larvae

C: An order of insects that includes dragonflies and damselflies

D: A family of butterflies that inhabit dense forests

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Answer: C

Explanation:

Odonata is an order of insects, which includes dragonflies (Anisoptera) and damselflies (Zygoptera).

Q3:

Consider the following statements about the Sentinelese tribe:

1.    The Sentinelese are believed to be one of the oldest human groups and have lived in complete isolation for thousands of years.

2.    The Indian government allows limited contact with the Sentinelese under strict health and safety protocols.

3.    One of the major reasons for restricting access to North Sentinel Island is the tribe’s lack of immunity to modern diseases.

How many of the above statements are correct?

A: Only 1

B: Only 2

C: All three

D: None

Show

Answer: B

Explanation:

Statement 1 is correct. The Sentinelese are considered among the world’s oldest uncontacted tribes.

Statement 2 is incorrect. The Indian government enforces a strict no-contact policy to prevent any interaction with the Sentinelese.

Statement 3 is correct. The tribe lacks immunity to modern diseases, making even minor infections potentially fatal.

Q4:

Consider the following statements regarding AI-generated Child Sexual Abuse Material (CSAM):

1.    AI-generated CSAM does not involve real children; therefore, it is not legally punishable in any country.

2.    The UK has introduced legislation criminalizing not only the possession and distribution of AI-generated CSAM but also the tools used to create it.

3.    India’s IT Act, 2000, under Section 67B, explicitly criminalizes AI-generated CSAM.

How many of the above statements are correct?

A: Only 1

B: Only 2

C: All three

D: None

Show

Answer: B

Explanation: