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Solved QuestionsUPSC Prelims 2022

[Solved] In the context of WHO Air Quality Guidelines, consider the following statements: The 24-hour mean of PM2.5 should not exceed 15 ug/m³ and annual mean of PM2.5 should not exceed 5 µg/m³. In a year, the highest levels of ozone pollution occur during the periods of inclement weather. PM10 can penetrate the lung barrier and enter the bloodstream. Excessive ozone in the air can trigger L asthma. Which of the statements given above are correct?

Q44) In the context of WHO Air Quality Guidelines, consider the following statements: The 24-hour mean of PM2.5 should not exceed 15 ug/m³ and annual…
Sleepy Classes
May 29, 2025
Solved QuestionsUPSC Prelims 2022

[Solved] “If rainforests and tropical forests are the lungs of the Earth, then surely wetlands function as its kidneys.” Which one of the of following functions of wetlands best reflects the above statement? The water cycle in wetlands involves surface runoff, subsoil percolation and evaporation. Algae form the nutrient base upon which fish, crustaceans, molluscs, birds, reptiles and mammals thrive. Wetlands play vital role in a maintaining sedimentation balance and soil stabilization. Aquatic plants absorb heavy metals and excess nutrients.

Q43) "If rainforests and tropical forests are the lungs of the Earth, then surely wetlands function as its kidneys." Which one of the of following…
Sleepy Classes
May 29, 2025
Solved QuestionsUPSC Prelims 2022

[Solved] Consider the following statements: “The Climate Group” is an international non-profit organization that drives climate action by building large networks and runs them. The International Energy Agency in partnership with the Climate Group. launched a global initiative “EP100”. EP100 brings together leading companies committed to driving innovation in energy efficiency and increasing competitiveness while delivering on emission reduction goals. Some Indian companies are members of EP100. The International Energy Agency is the Secretariat to the “Under2 Coalition”.

Q42) Consider the following statements: "The Climate Group" is an international non-profit organization that drives climate action by building large networks and runs them. The…
Sleepy Classes
May 29, 2025
Solved QuestionsUPSC Prelims 2022

[Solved] If a major solar storm (solar flare) reaches the Earth, which of the following are the possible effects on the Earth? GPS and navigation systems could fail. Tsunamis could occur at equatorial regions. Power grids could be damaged. Intense auroras could occur over much of the Earth. Forest fires could take place over much of the planet. Orbits of disturbed. the satellites could be disturbed. Shortwave radio communication of the aircraft flying over polar regions could be interrupted.

Q40) If a major solar storm (solar flare) reaches the Earth, which of the following are the possible effects on the Earth? GPS and navigation…
Sleepy Classes
May 29, 2025
Solved QuestionsUPSC Prelims 2022

[Solved] In the context of vaccines manufactured to prevent COVID-19 pandemic, consider the following statements: The Serum Institute of India produced COVID-19 vaccine named Covishield using mRNA platform. Sputnik V vaccine is manufactured using vector-based platform. COVAXIN is an inactivated pathogen- based vaccine. Which of the statements given above are correct?

Q39) In the context of vaccines manufactured to prevent COVID-19 pandemic, consider the following statements: The Serum Institute of India produced COVID-19 vaccine named Covishield…
Sleepy Classes
May 29, 2025
Solved QuestionsUPSC Prelims 2022

[Solved] Consider the following statements in respect of probiotics: Probiotics are made of both bacteria and yeast. The organisms in probiotics are found in foods we ingest but they do not naturally occur in our gut. Probiotics help in the digestion of milk sugars. Which of the statements given above is/are correct?

Q38) Consider the following statements in respect of probiotics: Probiotics are made of both bacteria and yeast. The organisms in probiotics are found in foods…
Sleepy Classes
May 29, 2025
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