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UPSC Prelims 2023

Solved QuestionsUPSC Prelims 2023

[Solved] Aerial metagenomics best refers to which one of the following situations? Collecting DNA samples from air in a habitat at one go Understanding the genetic makeup of avian species of a habitat Using air-borne_ devices to collect blood samples from moving animals Sending drones to inaccessible areas to collect plant and animal samples from land surfaces and water bodies

Q39. Aerial metagenomics best refers to which one of the following situations? Collecting DNA samples from air in a habitat at one go Understanding the…
Sleepy Classes
May 30, 2025
Solved QuestionsUPSC Prelims 2023

[Solved] Consider the following activities: Spreading finely ground basalt rock on farmlands Extensively Increasing the alkalinity of oceans by adding lime, Capturing carbon dioxide released by various industries and pumping it into abandoned subterranean mines in the form of carbonated How many of the above activities are often considered and discussed for carbon capture and sequestration?

Q38. Consider the following activities: Spreading finely ground basalt rock on farmlands Extensively Increasing the alkalinity of oceans by adding lime, Capturing carbon dioxide released…
Sleepy Classes
May 30, 2025
Solved QuestionsUPSC Prelims 2023

[Solved] Wolbachia method’ is sometimes talked about with reference to which one of the following? Controlling the viral diseases spread by mosquitoes Converting crop residues into packing material Producing biodegradable plastics Producing biochar from thermochemical conversion of biomass

Q37. Wolbachia method' is sometimes talked about with reference to which one of the following? Controlling the viral diseases spread by mosquitoes Converting crop residues…
Sleepy Classes
May 30, 2025
Solved QuestionsUPSC Prelims 2023

[Solved] Consider the following statements: In a seismograph, P waves are recorded earlier than S waves. In P waves, the individual particles vibrate to and fro in the direction of wave propagation whereas in S waves, the particles vibrate up and down at right angles to the direction of wave propagation. Which of the statements given above is/are correct?

Q35. Consider the following statements: In a seismograph, P waves are recorded earlier than S waves. In P waves, the individual particles vibrate to and…
Sleepy Classes
May 30, 2025
Solved QuestionsUPSC Prelims 2023

[Solved] With reference to the Earth’s atmosphere, which one of the following statements is correct? The total amount of insolation received at the equator is roughly about 10 times of that received at the poles. Infrared rays constitute roughly two-thirds of insolation. Infrared waves are largely absorbed by water vapour that is concentrated in the lower atmosphere. Infrared waves are a part of visible spectrum of electromagnetic waves of solar radiation.

Q32. With reference to the Earth's atmosphere, which one of the following statements is correct? The total amount of insolation received at the equator is…
Sleepy Classes
May 30, 2025
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