CH.4 EARTH'S STRUCTURE

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

• SIAL - SIMA – NIFE
• NIFE - SIMA - SIAL
• NIFE - SIAL – SIMA
• None of the above.

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

• Asthenosphere
• Mantlenosphere
• Moltenosphere
• None of the above

What is the temperature variation in the mantle?

• 1500; 3700
• 1500; 2500
• 1000; 3700
• 1000; 4000

Name the mantle core interface

• Gutenberg Discontinuity
• Mantlic Discontinuity
• Core Discontinuity
• Mohorovicic Discontinuity

Name the boundary between the crust and the mantle.

• Gutenberg Discontinuity
• Crust Discontinuity
• Mantlic Discontinuity
• Mohorovicic Discontinuity