Current Affairs MCQs | 24 June 2025 | UPSC PSC SSC

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1. Consider the following statements regarding Sariska Tiger Reserve:

  1. It lies in the Satpura Range and is known for bamboo-dominated landscapes.
  2. It was declared a national park in 1955.
  3. It is part of the Aravalli mountain range and is home to the Northern Tropical Dry Deciduous Forests.

सरिस्का टाइगर रिज़र्व के संबंध में निम्नलिखित कथनों पर विचार करें:

  1. यह सतपुड़ा श्रेणी में स्थित है और बाँस-प्रधान परिदृश्य के लिए जाना जाता है।
  2. इसे 1955 में राष्ट्रीय उद्यान घोषित किया गया था।
  3. यह अरावली पर्वतमाला का हिस्सा है और उत्तरी उष्णकटिबंधीय शुष्क पर्णपाती वनों का निवास है।

a) 1 and 2
b) 3 only
c) 2 and 3
d) 1 and 3

Tap here for Answer and Explanation
Answer: b) 3 only

Explanation:

  • Statement 1 is incorrect: Sariska is situated in the Aravalli Range, not Satpura. It is not known for bamboo dominance but for dhok and other dry deciduous trees.
  • Statement 2 is incorrect: It was declared a natural reserve in 1955 and became a national park in 1979.
  • Statement 3 is correct: It is part of the Aravalli hills and represents Northern Tropical Dry Deciduous Forests, as well as Northern Tropical Thorn Forests.

2. With reference to the Himalayan Brown Bear, consider the following statements:

  1. It is classified as “Endangered” under the IUCN Red List.
  2. It is found only in India and Nepal.
  3. It hibernates during winter and has an omnivorous diet.

हिमालयन ब्राउन बियर के संदर्भ में निम्नलिखित कथनों पर विचार करें:

  1. इसे IUCN रेड लिस्ट में “लुप्तप्राय” के रूप में वर्गीकृत किया गया है।
  2. यह केवल भारत और नेपाल में पाया जाता है।
  3. यह सर्दियों में सुप्तावस्था में चला जाता है और सर्वाहारी होता है।

a) 1 and 2
b) 3 only
c) 1 and 3
d) 2 and 3

Tap here for Answer and Explanation
Answer: c) 1 and 3

Explanation:

  • Statement 1 is correct: The Himalayan Brown Bear is listed as Critically Endangered, which is a more severe threat category than Endangered.
  • Statement 2 is incorrect: This species is also found in Pakistan, Bhutan, and Tibet, not just India and Nepal.
  • Statement 3 is correct: It is an omnivore and hibernates in dens during winter to survive extreme cold.

3. Kounis Syndrome is best described as:

काउनीस सिंड्रोम को सबसे उपयुक्त रूप में कैसे वर्णित किया जा सकता है?

a) A neurological disorder affecting cardiac conduction
b) An allergic reaction leading to acute coronary events
c) A genetic condition affecting platelet formation
d) A viral infection affecting the endocardium

Tap here for Answer and Explanation
Answer: b) An allergic reaction leading to acute coronary events

Explanation:
Kounis Syndrome is a rare condition in which an allergic reaction leads to an acute coronary syndrome (ACS) — i.e., heart attack.

  • It happens when allergens (e.g., insect stings, NSAIDs, foods) activate mast cells, which release histamine and other chemicals.
  • These cause spasm or rupture of coronary arteries, leading to myocardial infarction.
  • There are three types depending on the patient’s coronary condition (normal, existing disease, or stent presence).

4. Consider the following statements regarding the Gwada Negative blood group system:

  1. It is formally known as EMM-negative and lacks a high-incidence antigen.
  2. It is recognized as the 48th blood group system globally.
  3. It is the only blood group identified exclusively in South Asia.

ग्वाडा नेगेटिव रक्त समूह प्रणाली के संबंध में निम्नलिखित कथनों पर विचार करें:

  1. इसे EMM-नेगेटिव के रूप में औपचारिक रूप से जाना जाता है और इसमें उच्च-आवृत्ति एंटीजन नहीं होता है।
  2. इसे वैश्विक रूप से 48वीं रक्त समूह प्रणाली के रूप में मान्यता प्राप्त है।
  3. यह एकमात्र रक्त समूह है जिसे विशेष रूप से दक्षिण एशिया में पहचाना गया है।

a) 1 and 2
b) 2 and 3
c) 1 and 3
d) 1, 2 and 3

Tap here for Answer and Explanation
Answer: a) 1 and 2

Explanation:

  • Statement 1 is correct: Gwada Negative (EMM-negative) blood group lacks EMM antigen, which is present in nearly all humans.
  • Statement 2 is correct: It has been officially accepted as the 48th blood group system by the International Society of Blood Transfusion (ISBT).
  • Statement 3 is incorrect: The only known individual with this group is a woman from Guadeloupe, not from South Asia.

5. Which of the following statements regarding INS Tamal is/are correct?

  1. It is the last warship of Russian origin to be inducted by India.
  2. It features vertically launched surface-to-surface missiles only.
  3. It belongs to the upgraded Tushil class of Krivak-class frigates.

INS तमाल के बारे में निम्नलिखित में से कौन-से कथन सही हैं?

  1. यह भारत द्वारा शामिल किया गया अंतिम रूसी मूल का युद्धपोत है।
  2. इसमें केवल सतह से सतह मिसाइलें ही तैनात हैं।
  3. यह क्रिवाक वर्ग की उन्नत तुशील श्रेणी का हिस्सा है।

a) 1 and 2
b) 2 and 3
c) 1 and 3
d) 1, 2 and 3

Tap here for Answer and Explanation
Answer: c) 1 and 3

Explanation:

  • Statement 1 is correct: INS Tamal is the final Russian-origin warship to be inducted by India under efforts to promote indigenization.
  • Statement 2 is incorrect: It includes surface-to-air missiles, torpedoes, and anti-submarine rockets in addition to surface-to-surface BrahMos missiles.
  • Statement 3 is correct: It belongs to the Tushil class, which is an upgraded version of the Krivak-class stealth frigates.

6. Consider the following pairs regarding Lake Tahoe:

  1. Depth – Second-deepest lake in the United States
  2. Purity – 99.994% pure water
  3. Outflow – Truckee River drains into the Pacific Ocean

लेक टाहो से संबंधित निम्नलिखित युग्मों पर विचार करें:

  1. गहराई – संयुक्त राज्य अमेरिका की दूसरी सबसे गहरी झील
  2. शुद्धता – 99.994% शुद्ध जल
  3. प्रवाह – ट्रकी नदी प्रशांत महासागर में मिलती है

a) 1 and 2 only
b) 2 and 3 only
c) 1 and 3 only
d) 1, 2 and 3

Tap here for Answer and Explanation
Answer: a) 1 and 2 only

Explanation:

  • Pair 1 is correct: Lake Tahoe is the second-deepest lake in the U.S., after Crater Lake.
  • Pair 2 is correct: It is one of the purest lakes in the world, with 99.994% water purity.
  • Pair 3 is incorrect: Truckee River flows into Pyramid Lake, a closed basin, and not the Pacific Ocean.

7. With reference to Tomahawk cruise missiles, consider the following statements:

  1. It is a hypersonic missile developed by Israel.
  2. It follows a linear path to improve targeting accuracy.
  3. It is capable of striking land-based targets with high precision.
  4. It uses turbofan propulsion after launch.

टोमहॉक क्रूज़ मिसाइल के संदर्भ में निम्नलिखित कथनों पर विचार करें:

  1. यह इज़राइल द्वारा विकसित एक हाइपरसोनिक मिसाइल है।
  2. यह लक्ष्य की सटीकता बढ़ाने के लिए एक सीधी उड़ान पथ का अनुसरण करती है।
  3. यह भूमि आधारित लक्ष्यों को उच्च सटीकता के साथ भेद सकती है।
  4. यह लॉन्च के बाद टर्बोफैन इंजन का उपयोग करती है।

a) 1 and 2 only
b) 3 and 4 only
c) 2 and 3 only
d) 1, 3 and 4 only

Tap here for Answer and Explanation
Answer: b) 3 and 4 only

Explanation:

  • Statement 1 is incorrect: Tomahawk is a subsonic cruise missile developed by the United States, not Israel.
  • Statement 2 is incorrect: It follows a non-linear path to evade radar detection and interception.
  • Statement 3 is correct: It is designed for high-precision land strikes, guided by GPS and terrain contour mapping.
  • Statement 4 is correct: After launch, it is powered by a turbofan engine that produces minimal heat, helping in stealth operations.

8. The National Green Tribunal has raised concerns over large-scale felling of palm trees due to:

राष्ट्रीय हरित अधिकरण ने पाम वृक्षों की बड़े पैमाने पर कटाई को लेकर किस कारण से चिंता व्यक्त की है?

a) Desertification and loss of groundwater
b) Increase in lightning-related fatalities
c) Increase in carbon dioxide emissions
d) Collapse of palm oil exports

Tap here for Answer and Explanation
Answer: b) Increase in lightning-related fatalities

Explanation:

  • The NGT expressed concern over mass felling of palm trees in Bihar, which has reportedly caused a rise in lightning-related deaths.
  • Palm trees act as natural lightning rods, attracting lightning strikes and protecting surrounding areas.
  • Their removal has left open areas more vulnerable to direct lightning strikes, especially during monsoon season.

9. Which of the following statements about Chios Island are correct?

  1. It lies in the Ionian Sea and is part of Turkish territory.
  2. It is known as “The Mastic Island” due to its resin exports.
  3. Mount Pelinaíon is the island’s highest peak.
  4. It is the largest island in the Aegean Sea.

निम्नलिखित में से कौन-से कथन चिओस द्वीप के बारे में सही हैं?

  1. यह आयोनियन सागर में स्थित है और तुर्की का हिस्सा है।
  2. यह अपने रेज़िन निर्यात के कारण “मैस्टिक द्वीप” के रूप में जाना जाता है।
  3. माउंट पेलिनायोन इस द्वीप की सबसे ऊँची चोटी है।
  4. यह एजियन सागर का सबसे बड़ा द्वीप है।

a) 1 and 4 only
b) 2 and 3 only
c) 1, 2 and 3 only
d) 2, 3 and 4 only

Tap here for Answer and Explanation
Answer: b) 2 and 3 only

Explanation:

  • Statement 1 is incorrect: Chios is a Greek island located in the Aegean Sea, not the Ionian Sea, and certainly not part of Turkey.
  • Statement 2 is correct: It is called “The Mastic Island” due to its famous mastic gum exports.
  • Statement 3 is correct: The highest point is Mount Pelinaíon, at 1,297 meters.
  • Statement 4 is incorrect: Chios is the fifth-largest island in Greece, not the largest in the Aegean.

10. Which of the following features apply to INS Nilgiri?

  1. It is equipped with Barak-8 and BrahMos missiles.
  2. It can achieve speeds of up to 45 knots.
  3. It uses a CODAG propulsion system.
  4. It is part of Project 17A stealth frigates.

निम्नलिखित में से कौन-सी विशेषताएँ INS नीलगिरी पर लागू होती हैं?

  1. इसमें बराक-8 और ब्रह्मोस मिसाइलें तैनात हैं।
  2. यह 45 नॉट्स तक की गति प्राप्त कर सकती है।
  3. इसमें CODAG प्रणोदन प्रणाली का उपयोग होता है।
  4. यह प्रोजेक्ट 17A स्टील्थ फ्रिगेट्स का हिस्सा है।

a) 1, 2 and 4
b) 1, 3 and 4
c) 2 and 3 only
d) 1 and 4 only

Tap here for Answer and Explanation
Answer: b) 1, 3 and 4

Explanation:

  • Statement 1 is correct: INS Nilgiri is equipped with both Barak-8 (for anti-air) and BrahMos missiles (for surface/ship targets).
  • Statement 2 is incorrect: It can achieve a maximum speed of around 28 knots, not 45.
  • Statement 3 is correct: It uses a CODAG (Combined Diesel and Gas) propulsion system, which enables high efficiency and flexibility.
  • Statement 4 is correct: It is the first ship of Project 17A, India’s indigenous stealth frigate programme.

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