AnswersLPISD Earth Systems A - CRCumulative Exam

Cumulative Exam — Cumulative exam Answers

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Which scientific study would most likely support the need for state law restrictions on plastic bag use?

A
identifying the process used to make plastic bags
B
observing that plastic bags hold more weight than some other bags
C
examining a cost-benefit analysis for using plastic bags
D
confirming the rise in animal deaths as plastic bag use increases
2
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Why are forecasters able to make more accurate predictions about the weather when using electronic tools?

A
A wide variety of devices can be used to collect weather data from many places.
B
Weather data come exclusively from different weather stations in one region.
C
Data fed into a supercomputer accounts only for select processes that occur on Earth.
D
Scientists must input several pieces of weather information into a computer system.
3

By which mechanism does older oceanic rock move at a ridge?

A
Magnetic forces move the rock.
B
Continents drift and move the rock.
C
The ridge subducts and moves the rock.
D
New molten material rises and moves the rock.
4

Which statement describes what is gained or lost during radioactive decay?

A
Atoms gain other atoms.
B
Elements take in energy.
C
Atoms lose smaller particles.
D
Elements gain smaller particles.
5

Error

Answer not available
6

Study the topographic map.

A
mountain peak
B
location of a ravine
C
steepness of a slope
D
distance between two areas
7

Which is a difference between the Paleozoic and Mesozoic era?

A
Animals lived in the water during the Mesozoic and on land in the Paleozoic.
B
The first birds emerged in the Paleozoic era while mammals first emerged in the Mesozoic.
C
Many different species of dinosaurs lived in the Mesozoic, but they all died off in the Paleozoic.
D
Animal complexity increased during the Paleozoic while the first flowering plants appeared in the Mesozoic era.
8

Frazier created several models to explain the difference between solids and liquids.Which statement describes an advantage of these models?

A
Frazier created models that are more accurate than current knowledge.
B
Frazier’s models oversimplified the characteristics of solids and liquids.
C
Frazier developed the models to explain different events that occur.
D
Frazier knew the models represented only certain aspects of solids and liquids.
9

The image shows landforms in Monument Valley, Utah.

Question illustration
A
folds, strike-slip faults, and anticlines
B
anticlines, synclines, and folds
C
synclines, normal faults, and strike-slip faults
D
normal faults, folds, and anticlines
10

Which statement best supports the development of new wind farms?

A
Wind farms decrease carbon dioxide concentrations in the atmosphere.
B
Wind farms increase public dependence on burning fossil fuels for energy.
C
Wind farms increase the volume of hazardous waste that is generated.
D
Wind farms decrease the number of migratory bird patterns that scientists observe.
11

Which measurement do geologists use to find the absolute age of once-living things?

A
amount of decayed daughter elements
B
total number of half-lives for the element potassium
C
age of ancient rocks located near the remains
D
amount of carbon-14 and nitrogen-14 in the remains
12

Why is it important that scientists conduct multiple observations during an experiment?

A
Data need to be reliable.
B
Data need to be based on opinions.
C
Data need to be subjective.
D
Data need to be supported by old information.
13

Fiona wants to answer this question: "Do plants grow more when given chemical or natural fertilizer?”Which statement is an appropriate hypothesis for this question?

A
If plants are given chemical and natural fertilizer, then they will grow because all plants need fertilizer.
B
If plants do not grow, then they need chemical and natural fertilizer because fertilizers help plants grow.
C
If plants do not grow, then they should be given natural fertilizer because this kind of fertilizer is more effective.
D
If plants are given chemical fertilizer, then they will grow more because this kind of fertilizer has more nutrients that the plants need.
14

Why it is important to replicate scientific experiments?

A
to detect mistakes
B
to confirm findings
C
to introduce more variables
D
to produce more trials with data
15

Which type of mass movement is the most destructive?

A
creep
B
erosion
C
landslide
D
slump
16

What will most likely happen if scientists use updated technology and make new discoveries about a theory?

A
A new theory will take the place of the old one.
B
The theory will become a law.
C
The theory will become a hypothesis.
D
Further experiments will confirm the new discoveries.
17

These images show types of landforms.Which image shows a plateau?

Question illustration
A
1
B
2
C
3
D
4
18

Why is "Which of the Great Lakes is the largest body of water?” a good scientific question?

A
It can be answered through an investigation.
B
It has a simple yes or no answer.
C
It has a wide focus.
D
It leads to an untestable hypothesis.
19

In which era did mammals emerge?

A
Cenozoic
B
Mesozoic
C
Paleozoic
D
Precambrian
20

A hiker crosses topography near the sea that has low elevation and low relief and then climbs up steeply to reach a peak.Which two landforms has the hiker experienced?

A
hills and plateau
B
plateau and mountain
C
mountain and coastal plains
D
interior plains and hills

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