Multiple choice questions
The person most responsible for putting geology on a scientific footing
was
a. Hutton b. Lyell c. Wegener
d. Newton e. Aristotle
DESCRIPTION OF THE EARTH
The radius of the earth is about ____ miles:
a. 2000 b. 4000 c.
8000 d. 16,000 e. 25,000
The diameter of the earth is about ____ miles:
a. 2000 b. 4000 c.
8000 d. 16,000 e. 25,000
The circumference of the earth is about ____ miles:
a. 2000 b. 4000 c.
8000 d. 16,000 e. 25,000
______% of the earth's surface is covered by the atmosphere
a. 100 b. 29 c. 43
d. 71 e.15
The most common atmospheric gas is:
a. oxygen b. nitrogen c.
argon d. water vapor e. none of these
The second-most common atmospheric gas is:
a. oxygen b. nitrogen c.
argon d. water vapor e. none of these
The two major constituents of the atmosphere are:
a. argon and carbon dioxide b. oxygen and argon
c. oxygen and nitrogen d. nitrogen and helium
e. oxygen and water vapor.
The minor (trace) components of the atmosphere:
a.are important from an environmental standpoint
b. control warming and cooling c. are responsible for atmospheric
pollution d. control the amount of UV that the surface
is exposed to e. all of these
______% of the earth's surface is covered by the hydrosphere
a. 100 b. 29 c. 43
d. 71 e.15
______% of the solid earth is covered by the lithosphere
a. 100 b. 29 c. 43
d. 71 e.15
The "actual" (=real) number of oceans on the earth is:
a. 7 b. 5 c. 3 d. 2
e. 1
The chemical component in oceans (the hydrosphere) are derived from:
a. weathering and outgassing b. photosynthesis
c. vulcanic outgassing only d. continents only
e. we don't know.
The largest volatile (gaseous) component emitted by volcanos
is responsible for creating:
a. oxygen b. the lithosphere c. the hydrosphere
d. the chemicals in the oceans e. none of these
Given the above cross-section diagram of the features found at the
earth's surface, use
a. for craton b. continental shelf
c. rift d. ridge e. none of these
What is: #1 etc,.....What this question means is that you should know
what all 13 ot these features are.
As you walk around Florida you are walking on a(n)
a. abyssal plain b. continental shelf
c. craton d. marginal mountain e. coastal
plain
As you walk around Florida you are walking on a(n)
a. abyssal plain b. continental shelf
c. craton d. marginal mountains
e. coastal plain
As you walk around Ohio or Ontario, you are walking on a(n)
a. abyssal plain b. continental shelf
c. craton d. marginal mountains
e. coastal plain
EARTHQUAKES
Earthquakes are due to:
a. volcanos b. pressure c. tidal influences of the
moon d. rock layers that rebound e. all of those.
The first (fastest) seismic waves to SURFACE after going through the
earth are :
a. S b. P c. Surface d. electromagnetic
e. they all arrive at the same time
S waves:
a. are slower than P waves b. disturb materials in the
direction in which they travel c. can pass through liquids
only d. are surface waves e. all are correct.
S or secondary waves generated by earthquakes:
a. are the fastest b. can travel only through solids
c. can travel through material in any state
d. travel only in straight lines e. continue through the
core.
A seismic discontinuity is where:
a. waves abruptly change their behavior b.
there is a gradual seismic change
c. there is a magnetic anomaly d. there is
a heat anomaly e. one type of facies is overlain by another
facies
The minimum number of stations needed to locate the epicenter
of a quake is:
a. 1 b. 2 c. 3 d. 4
e. 5
The closer to the epicenter of a quake, the greater its:
a. focus b. intensity c. epicenter
d. distance e. chance of being caused by subduction
Given the following chracteristics or data, answer:
A for inner core: B for asthenosphere
C for mantle D for outer core
and E for lithosphere
has the greatest density of any of the layers
has the least volume of any of the layers
intermediate layer 1800 mi thick
parts of this layer are constantly being created in divergent
boundaries
solid, has a density of about 3
Acts as a rigid outer layer
The plates float on this semi-molten layer
It is composed of Ni and Fe, is the densest of all layers and is solid
Densities in this layer reach 13 g/cm3 and temperatures
probably exceed 5000oC
The crust is part of this layer
It is 1800 miles thick, has the largest volume of all layers
S waves are absorbed by this layer and it likely is responsible for
the earth's magnetic field
it is semi-molten and part of the upper mantle
It is composed of Ni and Fe and is liquid
From studies of seismic waves, we can determine:
a. layer densities b. layer states (phases)
c. thicknesses d. location of epicenters e. all
of these
In the asthenosphere and the outer core, heat is likely to be mainly
transfered by:
a. conduction b. convection c. radiation
d. all of these e. none of these
The average density of the earth is:
a. 3 b. 5.5 c. 7 d.
9 e. 13