GEOLOGY 1500 ECU FINAL EXAM
QUESTIONS WITH 100% CORRECT
ANSWERS
Intrusive igneous rocks are called__ and extrusive rocks are called_____ - Answer-
Plutonic, volcanic
Most magma on Earth is formed by intense heating of mantle rocks - Answer- false
The difference between Rhyolite and Granite - Answer- There is no difference
Energy released by an earthquake propagates away from the ___ in all directions -
Answer- focus
Two major types of waves generated by earthquakes - Answer- body and surface
Richter magnitude 5 earthquakes release - Answer- 32 times more energy than the
other
Which is true about tsunamis - Answer- Tsunami can cause damage thousands miles
away from earthquake
Causes most damage from earthquakes - Answer- surface waves
Most magma produced in Earth interior - Answer- stays below the surface and forms
plutons
A rock without vesicular texture - Answer- Granite pegmatite
Primary source behind volcanic eruptions - Answer- Escaping volatile gases
Almost all of geologic time belongs to - Answer- Precambrian
Earth is 65 billion years old - Answer- False
Example of scientific theory - Answer- Plate tectonics, biological evolution, gravity:
All the above
, The present is the key to the past - Answer- uniformitarianism
Which statement is true about h2o - Answer- water is often presented in rocks and
minerals
Create magma by melting pre-existing rock to create - Answer- igneous
Earth mantle is a thick ocean - Answer- false
Lithosphere is composed of - Answer- all the crust plus upper mantle
The rock cycle is - Answer- none of the above
Pressure, temperature, and density increases - Answer- with depth
The thinnest layer of earth - Answer- Crust
Solid mixture of iron and nickel - Answer- Inner core
Comprises most of Earth volume - Answer- Mantle
Entirely liquid - Answer- outer core
Which is not a source of Earth internal heat - Answer- Solar radiation that cooked the
Earth for billion of years
Primary waves - Answer- Can pass through solids and liquids
Which has the lowest average density - Answer- Continental Crust
Temperature of Earth center - Answer- 12,000
Earth magnetic field originates from motions - Answer- none of the above
What color would you see at Earth center - Answer- White
The ___floats and moves across the ____ - Answer- Lithosphere and asthenosphere
Earth outer skin consist of - Answer- 20
Oldest rocks can be found in ocean basins - Answer- false
Alfred Wegener devised the theory Plate tectonics - Answer- False
Earth is expanding like a ballon - Answer- False
QUESTIONS WITH 100% CORRECT
ANSWERS
Intrusive igneous rocks are called__ and extrusive rocks are called_____ - Answer-
Plutonic, volcanic
Most magma on Earth is formed by intense heating of mantle rocks - Answer- false
The difference between Rhyolite and Granite - Answer- There is no difference
Energy released by an earthquake propagates away from the ___ in all directions -
Answer- focus
Two major types of waves generated by earthquakes - Answer- body and surface
Richter magnitude 5 earthquakes release - Answer- 32 times more energy than the
other
Which is true about tsunamis - Answer- Tsunami can cause damage thousands miles
away from earthquake
Causes most damage from earthquakes - Answer- surface waves
Most magma produced in Earth interior - Answer- stays below the surface and forms
plutons
A rock without vesicular texture - Answer- Granite pegmatite
Primary source behind volcanic eruptions - Answer- Escaping volatile gases
Almost all of geologic time belongs to - Answer- Precambrian
Earth is 65 billion years old - Answer- False
Example of scientific theory - Answer- Plate tectonics, biological evolution, gravity:
All the above
, The present is the key to the past - Answer- uniformitarianism
Which statement is true about h2o - Answer- water is often presented in rocks and
minerals
Create magma by melting pre-existing rock to create - Answer- igneous
Earth mantle is a thick ocean - Answer- false
Lithosphere is composed of - Answer- all the crust plus upper mantle
The rock cycle is - Answer- none of the above
Pressure, temperature, and density increases - Answer- with depth
The thinnest layer of earth - Answer- Crust
Solid mixture of iron and nickel - Answer- Inner core
Comprises most of Earth volume - Answer- Mantle
Entirely liquid - Answer- outer core
Which is not a source of Earth internal heat - Answer- Solar radiation that cooked the
Earth for billion of years
Primary waves - Answer- Can pass through solids and liquids
Which has the lowest average density - Answer- Continental Crust
Temperature of Earth center - Answer- 12,000
Earth magnetic field originates from motions - Answer- none of the above
What color would you see at Earth center - Answer- White
The ___floats and moves across the ____ - Answer- Lithosphere and asthenosphere
Earth outer skin consist of - Answer- 20
Oldest rocks can be found in ocean basins - Answer- false
Alfred Wegener devised the theory Plate tectonics - Answer- False
Earth is expanding like a ballon - Answer- False
