Internal Structure of Earth
The pieces in which Earth’s crust is broken are classified as:
ocean plates
ridge
trench
plates
plates
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The thickness of outer core of the Earth is aboutA. 2,250 km
B. 1,250 km
C. 1,500 km
D. 1,870 km
The outer core of the Earth is made up of:
A. nickel-iron alloy
B. platinum
C. copper
D. iron
The distinct layers of Earth does not include
A. crust
B. core
C. mantle
D. tectonic plates
The theory which states that the plates of earth are continuously moving is classified as:
A. The Trench Drift Theory
B. The Sphere Drift Theory
C. The Continental Drift Theory
D. The Oceanic Drift Theory
The types of plates includes
A. convection plate
B. oceanic plate
C. continental plate
D. both b and c
The range of thickness of crust is:
A. 5 to 60 km
B. 10 to 50 km
C. 15 to 40 km
D. 8 to 38 km
The currents that are formed in the mantle of the Earth are classified as:
A. convection currents
B. continental currents
C. oceanic currents
D. drift currents
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