Answers2001310 Earth Science Sem 1 - PearsonSpace Technology

Space Technology — Cumulative exam Answers

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1
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Meteorology is the study of

A
radar.
B
meteors.
C
Earth’s satellites.
D
Earth’s atmosphere.
2
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Which discovery did scientists make at mid-ocean ridges that caused them to conclude that new rock was being formed by molten material?

A
magnetic banding
B
pillow-shaped rocks
C
older rocks farther from the ridge
D
rocks with similar characteristics
3

A student came late to class and started her notes midway through the lecture. These are the notes she copied:–Small, rocky object–Not round, irregular shapes–Several meters to kilometers–Make up a belt between Mars and JupiterWhat should she title her notes?

A
Comets
B
Asteroids
C
Meteors
D
Meteoroids
4

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
5

When does the Northern Hemisphere receive the fewest hours of daylight?

A
during the fall equinox
B
during the winter solstice
C
during the spring equinox
D
during the summer solstice
6

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
7

At which point is crust neither created nor destroyed?

A
island chain
B
mid-ocean ridge
C
divergent boundary
D
transform boundary
8

How do minerals form from magma?

A
By rapidly melting in Earth's core
B
By crystallizing as magma or lava cools
C
By dissolving in ocean water
D
By breaking down into smaller particles
9

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.
10

Which force keeps the planets from floating off into space?

A
Earth’s gravity
B
the Sun’s gravity
C
the moon’s gravity
D
Milky Way’s gravity
11

An igneous rock has large red, black, and green crystals. How else can this rock be accurately described?

A
fine texture
B
cooled quickly
C
intrusive origin
D
created by lava
12

Which materials are moved by runoff?

A
nutrients
B
vegetation
C
large rocks
D
paved surfaces
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

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.
15

Why is the Continental Divide important?

A
It forms two river systems.
B
It combines two large ice sheets.
C
It separates two major watersheds.
D
It splits two large rivers through tributaries.
16

Which statement describes one feature that maps and globes share?

A
Both are spherical.
B
Both show seafloor features.
C
Both are scale models.
D
Both are two-dimensional.
17

Which is one factor that contributes to the formation of polar, temperate, and tropical zones?

A
the angle of the Sun’s rays
B
the direction of seasonal winds
C
the presence of prevailing winds
D
the movement of wind near a mountain
18

Study this image of space.

Question illustration
A
a nebula
B
a red giant
C
a supernova
D
a neutron star
19

What happens when the Sun emits more energy than normal?

A
Solar flares and sunspots occur, increasing Earth’s temperature.
B
Sunspots and volcanic eruptions occur, increasing Earth’s temperature.
C
Volcanic eruptions and movement of continents occur, decreasing Earth’s temperature.
D
Movement of continents and solar flares occurs, decreasing Earth’s temperature.
20

Scientists have detected an asteroid that is 700,000,000 km from Earth. About how many astronomical units is that?

A
0.5 AU
B
1 AU
C
3.5 AU
D
4.5 AU

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