Question Detail Big Bang was an explosion that occurred ? 10 Billion years ago15 Billion years ago20 Billion years ago25 Billion years ago Answer: Option B Similar Questions : 1. "Nagarjuna Sagar Multipurpose Project" is on which river ? GodavariTapiKosiKrishna Answer: Option DExplanation:"Nagarjuna Sagar Multipurpose Project" is on Krishna river in Andhra Pradesh. 2. Approximately how many Galaxies are there ? 10 Billion Galaxies 100 Billion Galaxies 1000 Billion Galaxies 10000 Billion Galaxies Answer: Option B 3. Atmosphere has how many distinct layers ? 3456 Answer: Option CExplanation:Distinct layers of atmosphere are : Troposphere, Stratosphere, Mesosphere, Thermosphere, Exoshpere. 4. Kalahari desert is in ? ChileSaudi ArabiaIndiaSouth Africa Answer: Option D 5. "Durand Line" is boundary between ? India and PakistanGermany and PolandIndia and ChinaPakistan and Afghanistan Answer: Option D Read more from - Geography Questions Answers