Internal Structure of Earth Quiz 1

The fourth layer of earth described by Vander Gracht is ________

Silicon found in earth crust________.

If an earthquake occurs at 0 degree P and S waves are recorded everywhere to ______ degrees from its source.

Mesosphere extends up to _______ km:

The proportion of ______ rocks decreases with depth.

________ is the least rigid sometimes described as plastic in nature.

An average depth of Sial varies from ______ km.

Liquid outer core is ______ thick.

When earth and moon are nearest that position is called:

______ is the densest of all layers

For every 108 feet descent bellow the surface of earth temperature rises for ________.

Temperature of core could be:

Temperature:

The fourth layer of ultra basic rocks is known as _____ layer.

Most widespread rocks in the world are:

The ______ Layer circumscribes the entire planet but is exposed only in ocean basins.

Core has a pressure of ______ times greater than the atmospheric pressure ______ billion.

The interior layer of the earth which is subjected to great heat and pressure is known technically as the barysphere. Which part of the earth does it refer to:

When material breaks away due to earth flow it normally leaves:

According to Jaffery's division the 3rd layer is made up of _________.

Just beneath the rigid lithosphere a soft layer of upper mental is called:

Two parts of the crust are:

Temperature of ______ ranges from 3000

________ of mental material produces convection currents beneath the surface of the earth.

______ waves move objects at right angles to their direction of motion.

Earth flows normally take place:

Hanging valleys are formed by the action of:

The most rigid and crystallize part of earth is _______.

Mohorovic Discontinuity is the difference of density from:

5% of the lithosphere is composed of:

Monsoon winds are largely caused by the differences in _____ between the land and the sea:

Seismic waves are the result of:

When three heavenly bodies are in same line, that situation is:

Inner core of the earth contains:

Continental crust consists of _______ rocks.

_______ has divided the entire earth into two broad divisions.

_______ of outer layer prevents the core from becoming a liquid or gas.

Continental crust accounts only about ______ of the earth's global surface.

Oxygen in earth crust is _______ .

_______ has oxides of iron, magnesium and silicon.

The crust accounts for _______ of earth's mass.

Radius of solid inner core is _____ miles.

__________ Waves move material in their path parallel to the direction of movement.

When earth and moon are farthest:

Thickness of core is:

________ rocks are there in oceanic crust.

Earthquake waves _______ in velocity upon entering the mentle.