Question Detail Thickness of Mantle Layer is about ? 2900 Km3100 Km3300 Km3500 Km Answer: Option AExplanation:Mantel Layer is below the Crust layer of earth. Similar Questions : 1. "Saptarishi" is the Indian name of which COnstellation ? Ursa MajorUrsa MinorOrionDraco Answer: Option A 2. Ozone is present in which of the following layers ? MesosphereStratosphereMesosphereThermosphere Answer: Option B 3. Kalahari desert is in ? ChileSaudi ArabiaIndiaSouth Africa Answer: Option D 4. Pyrenes Mountain is in which continent ? North AmericaSouth AmericaEuropeAustralia Answer: Option CExplanation:The Pyrenees Mountains form the natural border between France and Spain. 5. Big Bang theory explains ? Origin of Universe.Origin of Sun.Laws of physics.None of above. Answer: Option AExplanation:Big Bang theory explains explains origin of universe. It was formulated and proposed by the Belgian astronomer and cosmologist "Georges Lemaitre". Read more from - Geography Questions Answers