Sima is composed of …………… & ……………

1. Silica & Aluminium
2. Silica & Nickel
3. Silica & Magnesium
4. Silica & Ferrous

Gutenburg Discontinuity separates …………… & ……………

1. Crust & Core
2. Core & Mantle
3. Mantle & crust
4. Sial & Sima

Asthenosphere remains in …………… state.

1. Liquid
2. Molten
3. Partially Molten
4. Solid

Gutenburg Discontinuity is placed at …………… km depth from the surface.

1. 3270
2. 2900
3. 32
4. 1000