AnswersTX-Earth and Space Science ACumulative Exam

Cumulative Exam — Cumulative exam Answers

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A scientist wants to perform a controlled experiment to test the effect of rust on chemically treated iron. Which action would be most important to perform in a controlled experiment?

A
Design an experiment that is based on previously published results.
B
Expose the treated iron to the corrosive effects of the air.
C
Test a large piece of treated iron and a small piece of untreated iron.
D
Test a piece of treated iron and a piece of untreated iron under the same conditions.
42
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Study the topographic map.

A
mountain peak
B
location of a ravine
C
steepness of a slope
D
distance between two areas
43

Examine the image of the Hertzsprung-Russell diagram.

Question illustration
A
cool
B
hot
C
large
D
small
44

Fossils show how the complexity of living organisms has changed over time. Gerobatrachus hottoni was a unique organism that lived during the Permian period between ancient salamanders and ancient frogs. Scientists have nicknamed this organism the “frogamander” because it is believed to be a common ancestor of both modern frogs and salamanders.Which type of fossil is Gerobatrachus hottoni most likely to be?

Question illustration
A
intermediary
B
phylogenic
C
transitional
D
index
45

The image shows a world map.

Question illustration
A
east of Africa
B
close to the equator
C
on the prime meridian
D
in the Northern Hemisphere
46

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
47

Assuming the bull’s eye is the accepted value, which diagram shows results that are accurate and precise?

A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
48

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
49

What do scientists know about the future of the universe?

A
what dark matter is made of
B
why the expansion of the universe is accelerating
C
that stars will eventually burn out causing the universe to become cold and dark
D
that galaxies spin much slower than they should based on visible matter
50

Which action can humans take to reduce wave erosion?

A
build drainage systems
B
build houses near coastlines
C
build breakwaters in the ocean
D
reduce vegetation along coastlines

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