UPSC Prelims PYQs125. Electrically charged particles from space travelling at speeds of several hundred km/sec can severely harm living beings if they reach the surface of the Earth. What prevents them from reaching the surface of the Earth? (2012) Strive Edge / April 15, 2025
UPSC Prelims PYQs124. Normally, the temperature decreases with the increase in height from the Earth’s surface, because: (2012) Strive Edge / April 15, 2025
UPSC Prelims PYQs123. The annual range of temperature in the interior of the continents is high as compared to coastal areas. What is/are the reason/reasons? (2013) Strive Edge / April 15, 2025
UPSC Prelims PYQs122. During a thunderstorm, the thunder in the skies is produced by the (2013) Strive Edge / April 15, 2025
UPSC Prelims PYQs121. Why are dewdrops not formed on a cloudy night? (2019) Strive Edge / April 15, 2025
UPSC Prelims PYQs116. What explains the eastward flow of the equatorial counter-current? (2015) Strive Edge / April 14, 2025
UPSC Prelims PYQs114. What is the difference between asteroids and comets? (2011) Strive Edge / April 14, 2025
UPSC Prelims PYQs113.A person stood alone in a desert on a dark night and wanted to reach his village which was situated 5 km east of the point where he was standing. He had no instruments to find the direction, but he located the polestar. The most convenient way now to reach his village is to walk in the: (2012) Strive Edge / April 14, 2025
UPSC Prelims PYQs112. Which one of the following sets of elements was primarily responsible for the origin of life on the Earth? (2012) Strive Edge / April 14, 2025
UPSC Prelims PYQs111. Variations in the length of daytime and night-time from season to season are due to (2013) Strive Edge / April 14, 2025
UPSC Prelims PYQs110. Which of the following phenomena might have influenced the evolution of organisms? (2014) Strive Edge / April 13, 2025
UPSC Prelims PYQs106. If a major solar storm (solar flare) reaches the Earth, which of the following are the possible effects on the Earth? (2022) Strive Edge / April 13, 2025
