MCQ Chapter 20 General Science Class 7 Maharashtra Board MCQ For All Chapters – General Science Class 7In the World of Stars 1. What is a galaxy according to the document?A single starA tiny part of the solar systemA large system containing lakhs of starsA cloud of dust onlyQuestion 1 of 202. What are nebulae primarily made of?Oxygen and nitrogenHydrogen gas and dust particlesHelium and carbonWater vaporQuestion 2 of 203. What force causes the particles in a nebula to contract?Magnetic forceGravitational forceElectric forceNuclear forceQuestion 3 of 204. What is a star initially formed from?A planetary nebulaA spherical cloud of hydrogenA black holeA supernovaQuestion 4 of 205. Which of the following is NOT a stage in the lifecycle of stars?Red giant starWhite dwarfCelestial sphereNeutron starQuestion 5 of 206. What is the name of the galaxy containing our solar system?AndromedaMilky WayOrionScorpioQuestion 6 of 207. What is a constellation?A single bright starA group of stars forming a recognizable patternA type of nebulaA planet orbiting a starQuestion 7 of 208. What is the horizon in sky watching?The point above your headThe line where the sky seems to touch the groundThe path of the sunThe center of the celestial sphereQuestion 8 of 209. What is the celestial sphere?A real sphere surrounding EarthA virtual sphere on which stars appear to moveThe Earth’s atmosphereA physical object in spaceQuestion 9 of 2010. What is the zenith?The point below your feetThe point exactly above your headThe line dividing the skyThe path of the moonQuestion 10 of 2011. What is the nadir?The point above your headThe point below your feetThe north pole of the skyThe equator of the skyQuestion 11 of 2012. What are celestial poles?Points where the sun rises and setsPoints where Earth’s axis intersects the celestial sphereThe brightest stars in the skyThe center of constellationsQuestion 12 of 2013. What is the meridian in astronomy?The path of the sunA circle passing through the celestial poles and zenithThe horizon lineThe equator of the skyQuestion 13 of 2014. What is the celestial equator?The path of the sun around EarthAn extension of Earth’s equator onto the celestial sphereA line connecting the polesThe orbit of the moonQuestion 14 of 2015. What is the ecliptic?The apparent path of the sun on the celestial sphereThe line dividing the sky into two halvesThe orbit of Earth around the sunThe path of constellationsQuestion 15 of 2016. Why do stars appear to rise in the east and set in the west?Because the stars orbit EarthBecause Earth rotates from west to eastBecause the sun pulls themBecause of gravitational forceQuestion 16 of 2017. How much earlier do stars rise each day?2 minutes4 minutes10 minutes15 minutesQuestion 17 of 2018. How many degrees does the sun appear to move each day?1 degree5 degrees12 degrees30 degreesQuestion 18 of 2019. How many zodiac signs are there according to Western astronomers?9122788Question 19 of 2020. How many nakshatras are suggested by Indian astronomers?12273088Question 20 of 20 Loading...
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