250 million years ago super continent Pangaea was surrounded by a single large sea called
Pacific ocean
Atlantic ocean
Panthalassa
Mid-Atlantic Ridge
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
According to plate tectonics great Himalayas formed when
Europe collided with Africa
Asia 'ran' into India
South America collided with Antartica
Laurasia collided with Gondwana land
The temperature within the Earth increases with depth at rate of
10c for every 23m of depth
30c for every 32m of depth
0.10c for every 32m of depth
10c for every 32m of depth
The average thickness of Earth's mantle is about
2840 km
2880 km
2440 km
2480 km
The main theories that explain the plate movement are
Gravity and Velocity
Velocity and convection
Conduction and Gravity
Gravity and convection
The radius of the core of the Earth is about
3500 kms
4500 kms
5300 kms
4450 kms
The average density of SIMA layer is about
5.3 gm/cm3
35 gm/cm3
3.0 gm/cm3
3 mgm/cm3
The average density of SIAL layer of earth is
7.5 gm/cm3
2.7 gm/cm3
72 gm/cm3
2.7 mgm/cm3
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
