The main theories that explain the plate movement are
Gravity and Velocity
Velocity and convection
Conduction and Gravity
Gravity and convection
The density of the core is
3.7 gm/cm3 at the centre
5.5 gm/cm3 at the centre
3.0 gm/cm3 at the centre
13.0 gm/cm3 at the centre
The composite zone inhabited by most living creature is called
Atmosphere
Lithosphere
Hydrosphere
Biosphere
The average thickness of the Earth's outermost layer, the Earth's crust, is about
17 km
18 km
27 km
07 km
Choose the correct statement
The density and temperature increases with depth of Earth where as pressure decreases with depth.
The density, temperature, and pressure do not vary with the depth of Earth.
The density temperature and pressure increases with the depth of Earth
The temperature and pressure increases with the depth of Earth and density decreases with the depth
The Gutenberg Discontinuity is
The boundary between the Mantle and the core
The boundary between crust and mantle
The boundary between inner core and outer core
The boundary between Bary Sphere and Mesosphere
The copper Mantle is in
Solid state
liquid state
Partially molten state
Molten state
The formation of mountains are the result of
Divergent boundaries
Convergent boundaries
Transform fault boundaries
Earth quakes
250 million years ago super continent Pangaea was surrounded by a single large sea called
Pacific ocean
Atlantic ocean
Panthalassa
Mid-Atlantic Ridge
The radius of the core of the Earth is about
3500 kms
4500 kms
5300 kms
4450 kms
