AnswersDCSS Earth Systems CR 24-25Cumulative Exam

Cumulative Exam — Cumulative exam Answers

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1
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What is the Milky Way?

a
a spiral galaxy in which Earth is located
a
an elliptical galaxy in which Earth is located
a
an irregular galaxy in which Earth is located
t
the closest galaxy to the one in which Earth is located
2
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Which type of volcanic mountain has wide, gentle slopes?

r
rift
s
shield
c
composite
c
cinder cone
3

Which event is associated with tornados?

s
sea levels rising due to high waves
c
coastal flooding due to storm surge
p
paths of damage up to 50 miles long
w
wind and rain lasting for several days
4

The image shows a landform created by Earth’s forces.

Question illustration
A
anticline
B
shearing
C
syncline
D
tension
5

Which phrase defines altitude?

A
how tightly molecules are packed
B
a column of air pushing on an area
C
the force pushing on an area or a surface
D
the height of a given point above sea level
6

Which correctly lists three factors that are important to consider when forecasting weather?

A
clouds, isotherm, butterfly effect
B
isotherm, air pressure, temperature
C
air pressure, temperature, clouds
D
temperature, clouds, isotherm
7

Which correctly lists the three weather factors that are indicators of climate change?

A
sunsets, wind patterns, clouds
B
ocean currents, ice cores, temperature
C
temperature, wind patterns, ice cores
D
wind patterns, temperature, ocean currents
8

Which phrase best describes igneous rocks?

A
form when lava and magma cool
B
accumulate sediments following erosion
C
require heat and pressure to be formed
D
consist of many sediment layers
9

Which belt is a global wind belt found in the middle latitudes?

A
doldrums
B
jet streams
C
trade winds
D
prevailing westerlies
10

Which correctly lists three characteristics of minerals?

s
solid, crystal structure, definite chemical composition
o
organic, crystal structure, definite chemical composition
h
human-made, solid, organic
c
crystal structure, definite chemical composition, human-made
11

Which statement describes the law of superposition?

A
Sedimentary rocks were originally in horizontal layers.
B
In horizontal rock layers, each layer is younger than the one below it.
C
Rock layers must be in existence before something can happen to them.
D
Rocks that are not in horizontal layers were shifted by some geologic event.
12

Which continents contain folded mountains that match up to form one continuous mountain chain, serving as evidence that they once belonged to one landmass called Pangaea?

A
Antarctica and Africa
A
Africa and North America
S
South America and Africa
E
Eurasia and South America
13

What percentage of Earth’s water is fresh water?

A
3 percent
B
25 percent
C
75 percent
D
97 percent
14

Which statement describes one aspect of an earthquake’s magnitude?

A
It is measured by the Mercalli scale.
B
It is based on the size of seismic waves.
C
It is not usually affected by the amount of fault movement.
D
It is used to determine damage caused by earthquakes.
15

Which statement accurately describes the relationship between air pressure, air density, or altitude?

A
As altitude increases, pressure increases.
B
As altitude increases, air density increases.
C
Air pressure and density are lowest at sea level.
D
Denser air exerts more pressure than less dense air.
16

How do oxbow lakes form?

A
Rivers are dammed, and the water builds up, creating a lake.
B
Runoff pools in areas of low elevation, creating a temporary lake.
C
Rivers wear away banks until the bank is broken and the river flows straight.
D
Glaciers leave deep channels in the ground, which fill with water and become a lake.
17

How long ago do scientists believe the continents formed Pangaea?

a
about 135 million years ago
a
about 180 million years ago
a
about 300 million years ago
a
about 4.5 billion years ago
18

Where does compression often occur?

A
along a normal fault
B
along a strike-slip fault
C
at a divergent boundary
D
at a convergent boundary
19

Which correctly lists the three types of rock particles that make up soil?

A
air, clay, and sand
B
clay, water, and silt
C
sand, clay, and silt
D
silt, water, and air
20

Where is most of Earth’s 3 percent of fresh water found?

A
oceans
B
ice
C
water vapor
D
lakes

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