Week 2 Earth's Interior

Which of the following is NOT the reason why the Earth is not a perfect sphere?

• The land is irregular

• Bulging of the Earth's Equator

• The ocean floor is flat.

• Earth's rotation

Topography is the elevation of the land with respect to:

• Sea bed

• Sea floor

• Sea level

• Mount Everest

Based on this topographical map, which statements are TRUE?

• The blue areas are elevation of the ocean floor.

• The green areas are forest.

• The dark brown areas are mountainous areas.

• The yellow areas are desert.

Which of the following are the TWO most common elements inside the Earth?

• Silicon

• Iron

• Oxygen

• Magnesium

Which of the following is NOT considered as "Organic Chemicals"?

• Oil

• Magma

• Gas

• Coal

Which of the following is the CORRECT definition of "Rocks"?

• the collection of chemicals

• loose grains of minerals

• the collection of minerals

• liquidified rock

Which Earth layer is the thinnest?

• Mantle

• Core

• Crust

• Atmosphere

What does mantle "creeping" mean?

• The mantle is sinking under the crust.

• The mantle is floating above the core.

• The mantle does not move at all.

• The mantle is moving very slowly like a dense liquid.

Which of the following generates the Earth's magnetic field?

• Inner core

• Outer core

• Intel core

• Mantle

What does Earth's "rheology" mean?

• Earth's mechanical properties

• Earth's composition

• Earth's magnetic properties

• Earth's habitable characteristics