AnswersTX-Earth and Space Science ACumulative Exam

Cumulative Exam — Cumulative exam Answers

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1
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The field lines around one end of a bar magnet are shown below.

Question illustration
A
It is a south pole because the field lines spread out from this end.
B
It is a north pole because the field lines spread out from this end.
C
It is a south pole because the field lines enter the magnet at this end.
D
It is a north pole because the field lines enter the magnet at this end.
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

Which force changes the lithosphere by building up the surface?

A
volcanic eruptions
B
weathering
C
glacial erosion
D
rockslides
4

The MSDS for propane gives it a health rating of 1, a flammability rating of 4, and a reactivity rating of 0. According to the MSDS, which best describes propane?

A
highly corrosive
B
highly toxic
C
highly flammable
D
highly reactive
5

Which statement describes Earth?

A
It is an outer planet.
B
It is a gaseous planet.
C
It was formed from gas and dust.
D
It has a thick atmosphere of hydrogen and helium.
6

Read the passage.In Federal Drug Administration clinical trials, people who added a particular drug to diet and exercise were able to lose weight, as well as lower their blood pressure. This drug was evaluated in two clinical studies involving overweight adults with high blood pressure. The results of the trials showed that 48 percent of people taking this drug lost some of their body weight. The other group in this trial consisted of people who were not taking this medicine, and only 23 percent of them lost some weight.

A
Exercise and diet help people lose more weight than with the aid of this drug.
B
This drug helps people lose more weight than diet and exercise alone.
C
Overweight adults have always had high blood pressure.
D
This drug won’t help people lower their blood pressure if they already exercise.
7

Which explanation provides support for continental drift theory?

A
Dinosaurs lived on many continents.
B
Coal fields match up across continents.
C
Tropical plant fossils were found in warm areas.
D
Mountains formed where Earth cooled and shrank.
8

Look at this image of a star cluster.

Question illustration
A
open
B
binary
C
globular
D
eclipsing
9

Which list correctly names the three types of galaxies?

A
binary, open, globular
B
elliptical, open, binary
C
irregular, spiral, elliptical
D
open, irregular, spiral
10

Which materials are moved by runoff?

A
nutrients
B
vegetation
C
large rocks
D
paved surfaces
11

Which statement best describes a relationship amongst hypotheses, theories, and laws?

A
A hypothesis is used to explain laws and theories.
B
A law is used to explain a hypothesis and theories.
C
A hypothesis combines several theories.
D
A theory combines several hypotheses.
12

Why is it advisable to wear long sleeves when students work in a chemistry lab?

A
to provide warmth near the lab refrigerator
B
to protect the arms from lab chemicals
C
to minimize burns from hot water at the lab sink
D
to prevent burns when using a Bunsen burner
13

Which example best illustrates a method to show differences among Earth’s layers?

A
Carson models how the continental crust varies in thickness.
B
Marisol records atmospheric and oceanic temperatures at several beaches.
C
Eliza analyzes seismic wave activity from an earthquake using a computer model.
D
Oscar determines the pressure at different depths of Earth’s crust.
14

What is 5.27 × 10–4 written in standard form?

A
0.00527
B
0.000527
C
5,270
D
52,700
15

In addition to Earth, which planet has evidence of water on the surface?

A
Mars
B
Mercury
C
Neptune
D
Saturn
16

Which type of mass movement is the most destructive?

A
creep
B
erosion
C
landslide
D
slump
17

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.
18

How do rock types contribute to the rate of weathering?

A
Porous minerals weather faster.
B
Harder minerals break apart more easily.
C
Minerals that dissolve easily weather slower.
D
Permeable rocks have less chemical reactions.
19

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
20

Which phrases describe S waves?

A
behave like a ripple
B
move through liquids only
C
are classified as primary waves
D
are known as a type of direct evidence

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