The thickness of outer core of the Earth is about

  • 2,130 km
  • 2,750 km
  • 2,500 km
  • 2,250 km

The temperature at the core can be as high as

  • 2,550°C
  • 2,300°C
  • 3,700°C
  • 3,300°C

The layer below the crust of the Earth is

  • trench
  • mantle
  • core
  • ridge

The distinct layers of Earth does not include

  • crust
  • core
  • mantle
  • tectonic plates

The range of thickness of crust is

  • 5 to 60 km
  • 10 to 50 km
  • 15 to 40 km
  • 8 to 38 km

The pieces in which Earth's crust is broken are classified as

  • ocean plates
  • ridge
  • trench
  • plates

The thickness of the mantle is about

  • 3,900 km
  • 3,000 km
  • 2,900 km
  • 2,400 km

The currents that are formed in the mantle of the Earth are classified as

  • convection currents
  • continental currents
  • oceanic currents
  • drift currents

The types of plates includes

  • convection plate
  • oceanic plate
  • continental plate
  • both b and c

The thickness of crust under the continents is

  • 85 km
  • 40 km
  • 65 km
  • 72 km

The outer core of the Earth is made up of

  • nickel-iron alloy
  • platinum
  • copper
  • iron

The minimum thickness of crust under the oceans is

  • 8 km
  • 2 km
  • 5 km
  • 10 km

The inner core of the Earth is made up of

  • copper
  • iron
  • nickel-iron alloy
  • platinum

The division of cores of the Earth includes

  • inner core
  • tectonic core
  • outer core
  • both a and c

The plates that are made up of the older rocks are classified as

  • continental plate
  • contraction plate
  • convection plate
  • oceanic plate

The theory which states that the plates of earth are continuously moving is classified as

  • The Trench Drift Theory
  • The Sphere Drift Theory
  • The Continental Drift Theory
  • The Oceanic Drift Theory

The outermost layer of the Earth is

  • asthenosphere
  • crust
  • trench
  • ridge
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