stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Earth Formation Flashcards | StudBud
Explore
/
Earth Formation
Earth Formation
25 terms
·
StudBud Administration
·
681 plays
An #earth science review of early earth
Flashcards
25 cards
F
Practice quiz
P
Host live
L
Questions
25
Answers
1
The most dense layer of the earth is
inner core
outer core
crust
mantle
2
Photosynthesis impacts Earth's atmosphere by
by adding oxygen and removing carbon dioxide
by adding carbon dioxide and removing oxygen
by adding oxygen and removing carbon monoxide
3
Erosional features on Mars, such as runoff channels, provide evidence of
liquid hydrogen
liquid oxygen
liquid water
4
The thinnest layer of the Earth is
outer core
mantle
crust
inner core
5
What force draws the matter in an interstellar cloud to form a star?
magnetism
gravity
friction
6
The early Earth's three heat sources are
bombardment, asteroids, radiation
meteorites, asteroids, bombardment
radiation, bombardment, gravity
7
The inner core is
solid
liquid
gas
8
Heat from the sun warms the Earth by
radiation
conduction
convection
9
"Flow" of the mantle is caused by
conduction
radiation
convection
10
A characteristic of outer planets is
low density
few moons
high density
11
The middle mantle is a
solid
plastic-like
liquid
gas
12
A craton is
a fragment of a meteor that hits the Earth
a microcontinent
the oldest and most stable part of a continent
13
Bodies of debris that orbit the sun laying between Mars and Jupiter
meteors
comets
asteroids
14
A characteristic of terrestrial planets is
at least 20 moons
hydrogen and helium atmosphere
high density
15
What was a major source of water on the early Earth?
asteroids and meteorites
rain and snow
Mars and Jupiter
16
A simple organism composed of a single cell that does not contain a nucleus,
prokaryote
monokaryote
eukaryote
17
Which is true about the level of oxygen gas in the atmosphere during the Proterozoic
level remained the same
level decreased
level increased
18
Venus, Earth,Mercury, and Mars are the
giant gas planets
outer planets
inner planets
19
Venus is called the "evening star." This is misleading because
its a planet
its a star
it only comes out after midnight
20
Which summarizes the relationship between density of an element and its distribution in Earth?
The greater the density, the smaller the amount in crust.
The greater the density, the greater the amount in crust.
The lower the density, the smaller the amount in the crust.
21
The Earth is
2 byo
1 byo
4.4-4.6 byo
10 byo
22
The oldest known mineral on Earth is
zircon
quartz
fluorite
23
The process by which volcanoes vent water vapor, carbon dioxide, nitrogen and other substances
oxidation
outgassing
differentiation
24
Which heat sources of the early earth are no longer a major source of heat?
radioactivity and gravity
radioactivity and asteroids
asteroids and gravity
25
_____ is the science of determining the age of an object in comparison to another.
Absolute age dating
estimating age dating
relative age dating
