Challenge your UPSC & APSC preparation with the Daily Current Affairs Challenge – 4 June 2026, featuring questions on Defence ,Geography , Science and Tech, Assam Geography and Miscellaneous with detailed explanations and exam-focused insights.
Question No 1
Correct Answer: A
Explanation
- Statement 1 is incorrect: RudraM-II is an indigenously developed air-to-surface missile not surface to air missile.
- Statement 2 is correct: Rudram-II has been indigenously developed by Research Centre Imarat, Hyderabad as the nodal DRDO laboratory.
Question No 2
Correct Answer: C
Explanation
- Statement 1 is correct. El Niño is marked by unusually warm sea surface temperatures in the central and eastern Pacific Ocean.
- Statement 2 is incorrect. El Niño generally weakens the Indian southwest monsoon, often leading to below-normal rainfall.
- Statement 3 is correct. El Niño weakens the Walker Circulation and disrupts normal atmospheric circulation patterns.
- Statement 4 is correct. Deficient rainfall and reduced cloud cover during El Niño years often contribute to droughts and heatwaves in India.
Question No 3
Correct Answer: B
Explanation
Exerkines are biologically active molecules released into the bloodstream in response to physical exercise. They are produced not only by skeletal muscles but also by other organs such as the liver, heart, and brain.
These molecules include:
- Peptides
- Lipids
- Hormones
- Nucleic acids
Their significance lies in their ability to act as inter-organ signaling molecules, helping to explain how exercise produces beneficial effects throughout the body.
Key Functions:
- Improve cardiovascular health
- Enhance metabolic function
- Promote communication between organs
- Support brain health and cognitive function
- May help counter age-related cognitive decline and neurodegenerative diseases such as Alzheimer’s disease
Question No 4
Correct Answer: B
Explanation
The ecology of Manas National Park is sustained by a network of rivers belonging to the Brahmaputra Basin:
- Manas River -The principal river flowing through the park.
- Beki River -The major eastern distributary formed after the Manas bifurcates at Mathanguri.
- Aie River -Flows through the western buffer areas and contributes to alluvial deposition.
- Saralbhanga is not associated with Manas National Park.
Question No 5
Correct Answer: C
Explanation
The Assam Government has proposed transforming Guwahati into a “Purple City” by planting indigenous flowering species, particularly Ajar (Lagerstroemia speciosa), along with Kanchan and Kopou. The initiative aims to enhance urban greenery, ecological sustainability, and create a distinctive visual identity for the city through seasonal purple blossoms.
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