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Geology

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Theodora Kertzmann

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Cards in this guide (15)
The Moho is found directly above this layer of the lithosphere

mantle

Material that is about 180 million years old has been found in this layer of the crust

oceanic crust

What is the lower layer of the mantle composed of

Olivine.

Name the worlds hardest-riddle ever.

I HAVE CITIES ,BUT NO HOUSES I HAVE WATER ,BUT NO FISH I HAVE MOUNTAIN , BUT NO TREES WHAT AM I

This material is found only in the continental crust

granite

The lower layer of the mantle is composed of this material

The lower mantle's chemical composition includes silicon, magnesium, and oxygen. Most likely, it probably also contains some iron, calcium, and aluminum

The material at these depths is often referred to as the "post-perovskite" phase which is the high-pressure form of magnesium silicate (MgSiO3).

This is also known as a destructive boundary

convergent

Three of the four layers of this part of this crust are igneous material

Oceanic Crust

Steep-sided islands are sometimes formed by sea mounts

true

Results when underground water is heated by geothermal energy

geyser

What layer of the earth composes 80 percent of the lithosphere's volume

mantle.

It separates the mantle and the crust

The Mohorovicic Discontinuity, generally referred to as the Moho, where seismic waves increase in velocity.

Approximately 90 percent of the communication amoug all of the nations of the world is acomplished by underwater cable. true or false

False. Approximately 90 percent of the communication among all of the nations of the world is not accomplished by underwater cable.

Heat from the sun causes water to form water sources

Heat from the sun evaporates water from the oceans which then falls as rain

What is the best definition of job shadowing

a period of time during which a new employee follows current employees as they perform their jobs

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