Name the two broad divisions the earth crust is divided depending on chemical composition.

1. Lithosphere, hydrosphere
2. SIAL, SIMA
3. Core, Mantle
4. Crust, Asthenosphere

Continents : SIAL :: …………….. : SIMA

1. Mountains tops
2. Ocean floor
3. Plains
4. Volcanoes

Which of the following is the correct order as we move towards the surface of the earth.

1. SIAL - SIMA - NIFE
2. NIFE - SIMA - SIAL
3. NIFE - SIAL - SIMA
4. None of the above.

At the depth of around 100-410 km, mantle is partially molten and is known as:

1. Asthenosphere
2. Mantlenosphere
3. Moltenosphere
4. None of the above