Question

How does the thickness of oceanic crust compare to continental crust?

Answer & Solution

Answer: (Detailed Solution Below)

Option B: Oceanic crust is thinner

Detailed Solution:

The correct answer is “Oceanic crust is thinner”.

Continental crust is significantly thicker than oceanic crust, with an average thickness of 35–40 km compared to 6–7 km for oceanic crust.

Similar Questions:

What causes an earthquake to occur?
  1. Atmospheric pressure changes
  2. Magnetic field fluctuations
  3. Volcanic eruptions
  4. Movement of tectonic plates
In which direction do P-waves vibrate?
  1. Perpendicular to the direction of propagation
  2. Randomly
  3. Parallel to the direction of propagation
  4. Diagonally across the propagation path
What are the layers of the Earth from the outermost to the innermost?
  1. Crust, Mantle, Core
  2. Mantle, Crust, Core
  3. Core, Crust, Mantle
  4. Crust, Core, Mantle
In which materials can S-waves travel?
  1. Gaseous and liquid
  2. Solid only
  3. Liquid only
  4. Gaseous only
Which layer of the Earth is responsible for convection currents that drive plate tectonics?
  1. Lithosphere
  2. Asthenosphere
  3. Outer core
  4. Lower mantle
Which type of volcano is characterized by explosive eruptions and collapsed depressions?
  1. Shield volcanoes
  2. Composite volcanoes
  3. Calderas
  4. Flood basalt provinces
What does the Richter scale measure?
  1. Visible damage caused by an earthquake
  2. Depth of the earthquake focus
  3. Energy released by an earthquake
  4. Time duration of an earthquake
What is the approximate depth range of the lithosphere ?
  1. Up to 50 km
  2. Up to 100 km
  3. Up to 150 km
  4. Up to 200 km
What does Moho's discontinuity separate?
  1. Lithosphere and asthenosphere
  2. Crust and mantle
  3. Upper mantle and lower mantle
  4. Asthenosphere and lower mantle
Which processes are referred to as 'endogenic'?
  1. Processes originating outside the Earth
  2. Processes originating inside the Earth
  3. Processes involving water bodies
  4. Processes involving atmospheric changes
Which point experiences the earthquake waves first on the Earth's surface?
  1. Hypocentre
  2. Epicentre
  3. Focus
  4. Fault zone
Where is the deepest human-made hole on Earth located?
  1. United States
  2. Canada
  3. Russia
  4. China