2017 Mod6 Flashcards

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1
Q

Define the following terms:

A. Earth’s crust

A

Earths outer layer of rock

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2
Q

B. Sediment

A

Small, solid fragments of rock and other materials that are carried and deposited by wind water or ice examples would be send mod or gravel

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3
Q

C. Sedimentary rock

A

Rock formed when chemical reactions cement sediments together, hardening them

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4
Q

D. Igneous rock

A

Get the forms from molten rock

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5
Q

E. Metamorphic rock

A

Igneous or sedimentary rock that has been changed into a new kind of rock as a result of the great pressure and temperature

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6
Q

F. Plastic rock

A

Rock that behaves something mean and liquid and a solid

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7
Q

G. Earthquake

A

Vibration of the earths crust that results either from volcanic activity or rock masses Suddenlink moving from a fault

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8
Q

H. Fault

A

The boundary between two sections of the app that can move relative to one another

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9
Q

I.Focus

A

The point where an earthquake begins

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10
Q

J. Epicenter

A

The point of the surface of the earth directly above the earth quake focus

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11
Q

Scientists often separate the earth into five distinct sections name though sectionals

A

Atmosphere, hydrosphere, crust mantle and core

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12
Q

Of the five sections listed in question two, which can we observe directly

A

The crossed the atmosphere and hydrosphere

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13
Q

What do readings of the earth does the Moho discontinued this Kanuti separate? What about the Gutenberg does Kanuti what about the Lehmann discontinuity

A

The Moho this Kanuti is between the crust and the mantle. The Gutenberg disc in the ready is at the beginning of the court. The lemon does community is between the inner and outer core

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14
Q

What is the difference between the ways that igneous rock and sediment Terry rock form

A

Igneous rocks comes from lava/ magma. Sediment Terry rocks comes from sediments

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15
Q

Of the three types of flat discussed in this module, which type start out as different types of rock

A

Metamorphic rocks

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16
Q

What is unique about rocks in the asthenosphere

A

The raft is plastic rock

17
Q

What is the main thing scientists observe in order to learn about make up of the earths interior

A

Seismic waves

18
Q

Which is 7 AM at the import or the outer core? Why is it solid when the other is?

A

The inner core. Because of the pressure

19
Q

Where is the magnetic field of the earth generated?

A

In the course

20
Q

What causes the magnetic field of the year

A

A flow of electricity inside the course

21
Q

Give a brief description of the two main theories that attempt to explain the earths magnetic field

A

There is the Dynamo theory which states that the motion of the elbow to her would create a magnetic field and there’s the rapid the K3 which says that the magnetic field is a result of the weather there it was created

22
Q

What is the rapid – decay theory more scientifically valid then the Dynamo Siri

A

The rabbit decay Siri correctly predicted the magnetic field of the other planets

23
Q

Why is a catastrophic event like the worldwide flood in the last time and essential part of the earths history if the rapid Becky Siri is true

A

Because it eould explain why the field reversed itself

24
Q

What are two reasons that make otherwise good scientist ignore it the more scientifically valid rapid Dash the catering

A

Because the rapid DK Siri has makes the earth young lesson 10,000 years old and it relies on a global clock cataclysmic event a.k.a. the flood

25
Q

Why would life cease to exist without the earths magnetic field

A

The magnetic field reflects cosmic rays from the sun that would otherwise kill wife

26
Q

Where are the “plate” in plate tectonics

A

The plates are broken pieces of the earths crust

27
Q

What can happen when plates collide with one another?

A

Mountains or trenches conform and order a new crust

28
Q

What is Pangaea

A

The theory that the earth had one landmass in the past and it separated into the known continents

29
Q

Why do otherwise good scientist ignore plate tectonics theory despite the evidence that it exists for it

A

Because play tectonics seems to indicate an old age for the earth even though it does not necessarily mean the earth is extremely old cataclysmic event could have induced rapid plate movement

30
Q

What causes earthquakes

A

Plates scraping together when they move

31
Q

Briefly describe the elastic rebound theory of earthquakes

A

First two plates try to move parallel teach other because they get can get caught up on the rough edges of the others plates the bend while trying to move when they eventually break free of each other rocks snap back into place causing an earthquake

32
Q

Eight says mall a just the text and earthquake that measures for on the Richter scale. Later, he did text one that measures eight. How many more times energy does the second earthquake release as compared to the first

A

The earthquake that measured four equals 32 to the fourth power
So eight equals 32 to the eighit’s power to 32 to the eighth power divided by 32 to the fourth power equals 32 to the fourth power which equals 1048576

33
Q

Name for times of mountains. What is required for the formation message

A

The phone like mountains require where to call plane wasn’t 14 mountains required like pushing together volcanic and don’t mountains require magma