Internal Structure of Earth Quiz 1

Oxygen in earth crust is _______ .

Temperature:

_______ has oxides of iron, magnesium and silicon.

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

Temperature of core could be:

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

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

The most rigid and crystallize part of earth is _______.

Seismic waves are the result of:

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

Silicon found in earth crust________.

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

An average depth of Sial varies from ______ km.

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

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

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:

5% of the lithosphere is composed of:

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

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

When earth and moon are nearest that position is called:

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

Two parts of the crust are:

______ is the densest of all layers

Hanging valleys are formed by the action of:

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

________ rocks are there in oceanic crust.

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

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

Mohorovic Discontinuity is the difference of density from:

The fourth layer of earth described by Vander Gracht is ________

Thickness of core is:

The proportion of ______ rocks decreases with depth.

Mesosphere extends up to _______ km:

Earth flows normally take place:

Continental crust consists of _______ rocks.

_______ has divided the entire earth into two broad divisions.

The crust accounts for _______ of earth's mass.

Temperature of ______ ranges from 3000

Radius of solid inner core is _____ miles.

Liquid outer core is ______ thick.

When earth and moon are farthest:

Most widespread rocks in the world are:

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

Earthquake waves _______ in velocity upon entering the mentle.

Inner core of the earth contains:

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