IASbaba Daily Prelims Quiz
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The Current Affairs questions are based on sources like ‘The Hindu’, ‘Indian Express’ and ‘PIB’, which are very important sources for UPSC Prelims Exam. The questions are focused on both the concepts and facts. The topics covered here are generally different from what is being covered under ‘Daily Current Affairs/Daily News Analysis (DNA) and Daily Static Quiz’ to avoid duplication. The questions would be published from Monday to Saturday before 2 PM. One should not spend more than 10 minutes on this initiative.
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Question 1 of 5
1. Question
With reference to Coral Bleaching, consider the following statements:
Coral bleaching occurs when stressed corals expel their symbiotic algae called zooxanthellae.
Bleached corals are necessarily dead.
Rising sea-surface temperature and marine heatwaves are major causes of coral bleaching.
Ocean acidification and sediment-laden runoff can also contribute to coral stress.
Which of the statements given above are correct?Correct
Solution (c)
Explanation:
Statements 1, 3 and 4 are correct. Coral bleaching occurs when environmental stress causes corals to expel their symbiotic microscopic algae, commonly called zooxanthellae, which provide corals with colour and an important source of energy. Rising sea temperatures and marine heatwaves are major drivers, while ocean acidification, pollution and sediment-laden runoff can aggravate stress. Statement 2 is incorrect because bleached corals are not necessarily dead; they may recover if favourable environmental conditions return sufficiently quickly. However, prolonged stress can weaken corals and eventually lead to mortality. Coral bleaching therefore represents a major ecological indicator of marine environmental stress.
Why this question?
Tests distinction between coral bleaching, coral death and environmental stress mechanisms.
Why important for UPSC?
Climate change impacts on marine ecosystems are recurring Environment and Ecology themes.
PYQ Pattern Link
Similar to UPSC statement questions on symbiotic relationships and ecosystem disturbances.Incorrect
Solution (c)
Explanation:
Statements 1, 3 and 4 are correct. Coral bleaching occurs when environmental stress causes corals to expel their symbiotic microscopic algae, commonly called zooxanthellae, which provide corals with colour and an important source of energy. Rising sea temperatures and marine heatwaves are major drivers, while ocean acidification, pollution and sediment-laden runoff can aggravate stress. Statement 2 is incorrect because bleached corals are not necessarily dead; they may recover if favourable environmental conditions return sufficiently quickly. However, prolonged stress can weaken corals and eventually lead to mortality. Coral bleaching therefore represents a major ecological indicator of marine environmental stress.
Why this question?
Tests distinction between coral bleaching, coral death and environmental stress mechanisms.
Why important for UPSC?
Climate change impacts on marine ecosystems are recurring Environment and Ecology themes.
PYQ Pattern Link
Similar to UPSC statement questions on symbiotic relationships and ecosystem disturbances. -
Question 2 of 5
2. Question
Which one of the following statements best describes AstroSat?
Correct
Solution (b)
Explanation:
Option (b) is correct. AstroSat is India’s first dedicated multi-wavelength space observatory, launched in 2015 by PSLV-C30 from the Satish Dhawan Space Centre. It enables simultaneous observations across ultraviolet, visible and X-ray regions of the electromagnetic spectrum. Its scientific objectives include studying black holes, neutron stars, binary systems and transient X-ray sources. Option (a) is incorrect because AstroSat is not primarily an Earth-observation satellite. Option (c) incorrectly describes a lunar mission, while option (d) refers to navigation satellites. Its multi-wavelength capability distinguishes AstroSat from many single-band astronomical observatories.
Why this question?
Tests mission classification through purpose and electromagnetic observation capabilities.
Why important for UPSC?
ISRO missions frequently appear through objectives, payloads and scientific applications.
PYQ Pattern Link
Similar to UPSC questions distinguishing Indian space missions by their primary objectives.Incorrect
Solution (b)
Explanation:
Option (b) is correct. AstroSat is India’s first dedicated multi-wavelength space observatory, launched in 2015 by PSLV-C30 from the Satish Dhawan Space Centre. It enables simultaneous observations across ultraviolet, visible and X-ray regions of the electromagnetic spectrum. Its scientific objectives include studying black holes, neutron stars, binary systems and transient X-ray sources. Option (a) is incorrect because AstroSat is not primarily an Earth-observation satellite. Option (c) incorrectly describes a lunar mission, while option (d) refers to navigation satellites. Its multi-wavelength capability distinguishes AstroSat from many single-band astronomical observatories.
Why this question?
Tests mission classification through purpose and electromagnetic observation capabilities.
Why important for UPSC?
ISRO missions frequently appear through objectives, payloads and scientific applications.
PYQ Pattern Link
Similar to UPSC questions distinguishing Indian space missions by their primary objectives. -
Question 3 of 5
3. Question
Recently discovered Liocheles gracilipalpus is best described as:
Correct
Solution (b)
Explanation:
Option (b) is correct. Liocheles gracilipalpus is a newly documented species of scorpion belonging to the family Hormuridae. It was discovered near Judda in the Reasi district at an elevation of approximately 1,655 metres. The species is characterised by unusually long and slender pedipalps, especially prominent in males, and displays marked sexual dimorphism. Option (a) is incorrect because Staphylinidae is the family of rove beetles. Options (c) and (d) incorrectly identify the organism as a spider and centipede respectively. A key UPSC trap is remembering that scorpions belong to the class Arachnida, not Insecta.
Why this question?
Tests species-in-news taxonomy while distinguishing arachnids from insects and other arthropods.
Why important for UPSC?
New species discoveries frequently generate questions on taxonomy, habitat and biodiversity.
PYQ Pattern Link
Similar to UPSC questions identifying species through scientific classification and characteristics.Incorrect
Solution (b)
Explanation:
Option (b) is correct. Liocheles gracilipalpus is a newly documented species of scorpion belonging to the family Hormuridae. It was discovered near Judda in the Reasi district at an elevation of approximately 1,655 metres. The species is characterised by unusually long and slender pedipalps, especially prominent in males, and displays marked sexual dimorphism. Option (a) is incorrect because Staphylinidae is the family of rove beetles. Options (c) and (d) incorrectly identify the organism as a spider and centipede respectively. A key UPSC trap is remembering that scorpions belong to the class Arachnida, not Insecta.
Why this question?
Tests species-in-news taxonomy while distinguishing arachnids from insects and other arthropods.
Why important for UPSC?
New species discoveries frequently generate questions on taxonomy, habitat and biodiversity.
PYQ Pattern Link
Similar to UPSC questions identifying species through scientific classification and characteristics. -
Question 4 of 5
4. Question
With reference to the Ramon Magsaysay Award, consider the following statements:
It is named after a former President of the Philippines.
It was established in 1957 and first awarded in 1958.
Awardees are selected by the Ramon Magsaysay Award Foundation.
Which of the statements given above are correct?Correct
Solution (d)
Explanation:
Statements 1, 2 and 3 are correct. The Ramon Magsaysay Award is named after Ramon Magsaysay, a former President of the Philippines. It was established in 1957 and first awarded in 1958. The awardees are selected by the Ramon Magsaysay Award Foundation (RMAF) and the award is widely regarded as one of Asia’s most prestigious honours for transformative leadership and service. Formal ceremonies are held in Manila, Philippines. Since 2009, the award has generally not been restricted to fixed categories, although Emergent Leadership remains an exception.
Why this question?
Tests institution, chronology and geography through closely related factual statements.
Why important for UPSC?
International awards and associated personalities are regular current affairs examination themes.
PYQ Pattern Link
Similar to UPSC questions testing awards through institutions, countries and historical background.Incorrect
Solution (d)
Explanation:
Statements 1, 2 and 3 are correct. The Ramon Magsaysay Award is named after Ramon Magsaysay, a former President of the Philippines. It was established in 1957 and first awarded in 1958. The awardees are selected by the Ramon Magsaysay Award Foundation (RMAF) and the award is widely regarded as one of Asia’s most prestigious honours for transformative leadership and service. Formal ceremonies are held in Manila, Philippines. Since 2009, the award has generally not been restricted to fixed categories, although Emergent Leadership remains an exception.
Why this question?
Tests institution, chronology and geography through closely related factual statements.
Why important for UPSC?
International awards and associated personalities are regular current affairs examination themes.
PYQ Pattern Link
Similar to UPSC questions testing awards through institutions, countries and historical background. -
Question 5 of 5
5. Question
With reference to Rotenone, which one of the following statements is correct?
Correct
Solution (b)
Explanation:
Option (b) is correct. Rotenone is a naturally occurring compound obtained from the roots and stems of certain tropical plants, particularly species belonging to the family Fabaceae. It has historically been used as an insecticide and piscicide because of its toxic effects on insects and fish. Rotenone acts by interfering with cellular respiration, particularly the mitochondrial electron transport process. Option (a) is incorrect because it is not a fertiliser. Option (c) is incorrect because rotenone is not a nitrogen-fixing microorganism. Option (d) is incorrect because it is neither a greenhouse gas nor an ozone-depleting substance.
Why this question?
Tests the source, application and biological action of a naturally occurring toxic compound.
Why important for UPSC?
Chemicals in news may be tested through their origin, uses and environmental effects.
PYQ Pattern Link
Similar to UPSC questions distinguishing natural compounds, pesticides and agricultural biological agents.Incorrect
Solution (b)
Explanation:
Option (b) is correct. Rotenone is a naturally occurring compound obtained from the roots and stems of certain tropical plants, particularly species belonging to the family Fabaceae. It has historically been used as an insecticide and piscicide because of its toxic effects on insects and fish. Rotenone acts by interfering with cellular respiration, particularly the mitochondrial electron transport process. Option (a) is incorrect because it is not a fertiliser. Option (c) is incorrect because rotenone is not a nitrogen-fixing microorganism. Option (d) is incorrect because it is neither a greenhouse gas nor an ozone-depleting substance.
Why this question?
Tests the source, application and biological action of a naturally occurring toxic compound.
Why important for UPSC?
Chemicals in news may be tested through their origin, uses and environmental effects.
PYQ Pattern Link
Similar to UPSC questions distinguishing natural compounds, pesticides and agricultural biological agents.
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