Dr. Deepali ThakreApr 212 minInternal Structure of Earth (Part-2)The Mantle The mantle is the second major part of the earth, it is the source region of most of the earth’s internal energy and is...
Dr. Deepali ThakreMar 302 minInternal Structure of the Earth (Part-1)The Crust The crust is the uppermost shell of the earth. It is 5-10 km thick over the oceanic area, 35 km in the continental area, and...
Dr. Deepali ThakreFeb 102 minInternal Structure of the EarthIt is not possible to know about the earth’s interior by direct observations because of the huge size and the changing nature of its...
Dr. Deepali ThakreDec 19, 20233 minOrigin and Evolution of the Earth (Part-2)Earlier Theories Nebular Hypothesis (1755) Planetesimal Hypothesis (1904) Gaseous Tidal Hypothesis (1925) Double Star Hypothesis (1938)...