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Daily-mcqs 04 Dec 2025

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

Current Affairs MCQs for UPSC & State PSC Exams

Q1:

Consider the following statements about the membership of the World Health Organization (WHO):

1.   Only sovereign states are eligible to become members of WHO.

2.   WHO is the largest intergovernmental health organization in the world.

3.   WHO membership is automatically granted to all members of the United Nations.

Which of the statements given above is/are correct?

A: 1 and 2 only

B: 1 and 3 only

C: 2 and 3 only

D: 1, 2, and 3

Show

Answer: A

Explanation:

Statement 1 is correct. The only sovereign states are eligible to join WHO.

Statement 2 is correct. WHO is described as the largest intergovernmental health organization at the international level.

Statement 3 is incorrect. Although many UN members signed the constitution, membership is not automatic; states must separately ratify the WHO Constitution.

Q2:

With reference to the recent study conducted by the Indian Institute of Astrophysics (IIA) on solar magnetic activity, consider the following statements:

1.   The study used Ca-K line spectroscopic data from Kodaikanal Solar Observatory covering an 11-year period.

2.   Most solar magnetic activity was found to be concentrated near the poles, especially above 60° latitude.

3.   The study captured the transition from solar cycle 24 to solar cycle 25.

Which of the statements given above is/are correct?

A: 1 and 2 only

B: 1 and 3 only

C: 2 and 3 only

D: 1, 2, and 3

Show

Answer: B

Explanation:

Statement 1 is correct.
The study used 11 years (2015–2025) of Ca-K (Calcium-K) line spectroscopic data from the Kodaikanal Solar Observatory, giving a long-term view of solar magnetic patterns.

Statement 2 is incorrect.
The study clearly states that solar magnetic activity is concentrated between 40° north and south latitudes, with the strongest activity at 15–20°, not at high-latitude polar regions.

Statement 3 is correct.
The dataset captured the evolution from the peak of Solar Cycle 24 to the peak of Solar Cycle 25, showing predictable 11-year cycle behaviour.

Q3:

Why is mapping solar magnetic activity across latitudes scientifically and strategically important for India?

1.   It enhances prediction of solar storms and coronal mass ejections.

2.   It contributes to understanding the solar dynamo, which governs magnetic field generation on the Sun.

3.   It enables India to plan the timing of satellite launches during periods of low solar activity.

4.   It helps improve rainfall forecasting during the Indian monsoon season.

Select the correct answer using the code below:

A: 1 and 2 only

B: 1,3 and 4 only

C: 1, 2 and 3 only

D: 1, 2, 3 and 4

Show

Answer: C

Explanation:

Statement 1 is correct.
Mapping magnetic activity helps forecast solar storms, CMEs, and radio blackouts, all of which can disrupt ISRO satellites, power grids, communication systems, and GPS.

Statement 2 is correct.
Latitude-dependent activity patterns provide insights into solar dynamo mechanisms, including variations in magnetic field strength and chromospheric temperature.

Statement 3 is correct.
Knowledge of active and quiet solar phases allows strategic planning of satellite launches and designing radiation-hardened electronics.

Statement 4 is incorrect.
While solar variability may have minor long-term climatic influences, the study does not directly improve monsoon forecasting, nor is it a primary application mentioned.

Q4:

In the context of “Digital Arrest Scams” recently highlighted by the Supreme Court, consider the following statements:

1.   Digital arrest scams typically involve impersonation of officials from central agencies and conducting fake interrogations over video calls.

2.   The Supreme Court has empowered the CBI to investigate these scams even in states where general consent under the DSPE Act is withdrawn.

3.   RBI has been asked to develop AI/ML systems to detect suspicious patterns such as mule accounts and money layering.

4.   The Indian Cyber Crime Coordination Centre (I4C) operates under the Ministry of Electronics and IT.

How many of the above statements are correct?

A: Only one

B: Only two

C: Only three

D: All four

Show

Answer: C

Explanation:

Statement 1: Correct

Digital arrest scams involve fraudsters:

· Impersonating CBI/ED/Police officials,

· Conducting fake interrogations over Skype/Zoom/video calls,

· Threatening arrest or asset seizure unless money is transferred.

Statement 2: Correct

The Supreme Court directly ordered States to grant consent to the CBI under Section 6 of the DSPE Act, bypassing states that had withdrawn general consent.

Statement 3: Correct

The Supreme Court has issued notice to RBI asking how AI/ML tools can help detect:

· Money layering,

· Mule accounts,

· Complex suspicious transaction patterns.

Statement 4: Incorrect

The Indian Cyber Crime Coordination Centre (I4C) is under the Ministry of Home Affairs (MHA), not the Ministry of Electronics and IT.
It coordinates with banks, TSPs, fintech firms, and law enforcement to fight cybercrime.

Q5:

With reference to cancer, consider the following statements:

1.   Cancer is primarily a genetic disease caused by uncontrolled cell division.

2.   Carcinogens can induce mutations that may lead to cancer.

3.   All cancers are hereditary because they result from changes in DNA.

4.   Metastasis refers to the spread of cancer cells from the primary site to distant organs.

How many of the above statements are correct?

A: Only one

B: Only two

C: Only three

D: All four

Show

Answer: C

Explanation:

Statement 1: Correct

Cancer fundamentally results from uncontrolled proliferation of abnormal cells, typically due to genetic mutations affecting cell-cycle regulation. Hence, cancer is considered a genetic disease at the cellular level.

Statement 2: Correct

Carcinogens such as tobacco smoke, asbestos, UV radiation, aflatoxins, and certain chemicals induce DNA mutations, increasing the risk of cancer. Therefore, this statement is correct.

Statement 3: Incorrect

This is a common misconception.

While all cancers involve DNA mutations,

Not all cancers are hereditary.
Most arise due to acquired mutations from lifestyle, environment, infections, or random errors in DNA replication.
Only about 5–10% of cancers are hereditary (e.g., BRCA mutations).

Statement 4: Correct

Metastasis refers to the process by which cancer cells break away from the primary tumor, enter the bloodstream/lymphatic system, and colonize distant organs. It is a major cause of cancer mortality.