Top 100 Important Everyday Science Mcqs Set-10 21- Ibn Khaldun's Muqaddimah is regarded by many as: A. The first work dealing with a philosophy of historyB. A minor footnote in his writings C. A well-documented tale of his trial D. None of these View Answer Answer : A. The first work dealing with a philosophy of history Description 22- A physical, mathematical or logical representation of a natural phenomenon is called: A. PhenomenalB. A scientific modelC. A theoretical postulateD. None of these View Answer Answer : B. A scientific model Description 23- Isaac Newton and Gottfried Leibniz working independently in the 17th century laid the foundation of classical physics and are known as fathers of: A. Relativistic theory B. AstrologyC. Integral & differential calculusD. None of these View Answer Answer : C. Integral & differential calculus Description 24- A light year is: A. A year devoid of heavy rainfall B. The time taken by light to be generated & propagated from the centre of the Sun to our Earth C. The distance covered by light in one of our solar yearsD. None of these View Answer Answer : C. The distance covered by light in one of our solar years Description 25- Our Sun is classified as: A. A yellow dwarfB. A blue giant C. SupernovaD. None of these View Answer Answer : A. A yellow dwarf Description 26- The Sun produces most of its energy by: A. Nuclear fusion which involves converting Hydrogen to HeliumB. Nuclear fission involving the burning of uranium & palladium C. Both A and BD. None of these View Answer Answer : A. Nuclear fusion which involves converting Hydrogen to Helium Description 27- Which of the following is the correct ordering of the inner planets according to their proximity to the Sun? A. Phobos, Deimos, Europa, Tias B. Jupiter, Saturn, Uranus, Neptune C. Mercury, Venus, Earth, MarsD. None of these View Answer Answer : C. Mercury, Venus, Earth, Mars Description 28- How long does our Earth take to turn about its axis? A. 7 DaysB. 365 DaysC. 24 HoursD. None of these View Answer Answer : C. 24 Hours Description 29- Tides are generated by: A. The gravitational effect of Moon and Sun on our EarthB. The movements of ships in the oceans C. The movements of the Earth around the Sun D. None of these View Answer Answer : A. The gravitational effect of Moon and Sun on our Earth Description 30- Seasons are generated by: A. The movement of the Earth around the SunB. The movement of Sun around co-axes of the Milky Way C. Relativistic quantumD. None of these View Answer Answer : A. The movement of the Earth around the Sun Description 31- Although the mass of a man on Moon remains the same as on the Earth, he will: A. Be much happier there B. Weigh one sixth as muchC. Weigh twice as much D. None of these View Answer Answer : B. Weigh one sixth as much Description 32- If we are at sea level our atmosphere presses down on us with a pressure of: A. 1 FpsB. 12.3 FpsC. 35.8 FpsD. None of these View Answer Answer : D. None of these Description 33- Which planet is known as the "Morning Star"? A. JupiterB. MarsC. VenusD. Mercury View Answer Answer : C. Venus Description 34- Communication satellites are in: A. Geostationary orbitB. Geosynchronous orbit C. Semi-synchronous orbit D. None of these View Answer Answer : A. Geostationary orbit Description 35- Which of the following is true for hormones? A. All proteins are hormones B. All hormones are proteins C. All hormones are amino acids D. None of these View Answer Answer : D. None of these Description 36- Prokaryotes have which of the following structures? A. NucleusB. MitochondriaC. ChloroplastD. None of these View Answer Answer : D. None of these Description 37- Diversity in which of the following groups is not due to artificial selection? A. WheatB. DogsC. CottonD. None of these View Answer Answer : D. None of these Description 38- Arachnophobia refers to a fear of: A. SpidersB. SnakesC. BatsD. None of these View Answer Answer : A. Spiders Description 39- Which of the following is a part of DNA? A. DGTPB. DdapC. dTMPD. None of these View Answer Answer : C. dTMP Description 40- Female ova are: A. HaploidB. DiploidC. TriploidD. None of these View Answer Answer : A. Haploid Description 1 2 3 4 5