Challenge your UPSC & APSC preparation with the Daily Current Affairs Challenge – 20 May 2026. Solve important MCQs from Assam Economy, Science & Technology, Environment, and Sports with detailed explanations and exam-focused insights.
Question No 1
Correct Answer: C
Explanation
- The Centre has proposed Water Metro systems in 18 cities under the draft National Water Metro Policy, with the initiative led by the Ministry of Ports, Shipping and Waterways.
- Cities selected for the first phase include Guwahati, Srinagar, Patna, Varanasi, Ayodhya, and Prayagraj, while Tezpur and Dibrugarh have been proposed for the second phase.
- The projects will follow the successful Kochi Water Metro model to promote sustainable, efficient, and eco-friendly urban water transport.
Question No 2
Correct Answer: B
Explanation
The Zwan-Wolf effect, first discovered in 1976, was earlier observed only in planetary magnetospheres. NASA’s MAVEN mission has now detected it in the atmosphere of Mars for the first time. Since Mars lacks a strong global magnetic field like Earth, its atmosphere is directly exposed to the solar wind. Scientists observed the phenomenon in the Martian ionosphere below 200 km.
The Zwan-Wolf effect occurs when the solar wind — a stream of charged particles emitted by the Sun — approaches a planet’s magnetic boundary and becomes compressed. This creates a pressure difference that pushes charged particles along the magnetic field lines, away from the solar wind stream, resulting in a region with a lower concentration of charged particles near the stream.
Question No 3
Correct Answer: B
Explanation
- Statement 1 is correct: Kanha Tiger Reserve lies in the Maikal ranges of the Satpura hills, a biodiversity-rich landscape in central India.
- Statement 2 is correct: It forms an important part of the central Indian tiger landscape and maintains ecological connectivity through corridors with the Pench Tiger Reserve and the Achanakmar Tiger Reserve, enabling gene flow among tiger populations.
- Statement 3 is correct: Kanha is notable for introducing India’s first tiger reserve mascot, “Bhoorsingh the Barasingha,” inspired by its hard-ground swamp deer conservation success.
- Statement 4 is incorrect: The reserve is not dominated by tropical thorn forests. Instead, it mainly consists of moist sal and moist mixed deciduous forests, along with bamboo, tendu, sal, jamun, arjun, and lendia species.
Question No 4
Correct Answer: B
Explanation
- Statement 1 is correct: The ABO blood group system is controlled by a single gene with three alleles: IA, IB, and i (O type).
- Statement 2 is correct: Humans are diploid organisms, so each person carries two alleles, one from each parent.
- Statement 3 is correct:
- IA and IB are codominant (both express together → AB blood group).
- Both IA and IB are dominant over i (O allele).
- Statement 4 is incorrect: The ABO gene is primarily for blood grouping, but genes in general can have broader biological interactions, and blood group systems are also studied in relation to disease susceptibility and transfusion compatibility.
Question No 5
Correct Answer: C
Explanation:
- The Northeast Frontier Railway Sports Association (NFRSA) was crowned champion of the prestigious Nuruddin Ahmed Senior Inter-District Cricket Tournament 2026 (Elite Group). NFRSA secured the title by defeating Guwahati by five wickets in the final match played at the ACA Stadium in Barsapara, Guwahati.
- Team Awards: Champions NFRSA received a cash prize of ₹15 lakh, while runners-up Guwahati were awarded ₹10 lakh.
- Individual Honors:
- Player of the Final: Swarupam Purkayastha (NFRSA)
- Best Batter: Swarupam Purkayastha (NFRSA)
- Best Bowler: Abhilash Gogoi (NFRSA)
- Player of the Tournament: Swarupam Purkayastha (NFRSA)
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