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Geology 11
The Universe and the Solar System
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Cards (44)
formation of the universe
big bang theory
formation of the solar system
nebular hypothesis
who proposed the big bang theory
georges lemaitre
where did georges lemaitre originated
belgian
justified
Lemaitre’s theory through
observations that the universe
is continuously expanding and
moving away from each other
Edwin Hubble
evidences of the big bang theory
redshift
abundance of h and he
cosmic microwave background radiation
kelvin of the cmn
2.725 K
how is the age of the universe measured?
the speed of the expansion
view that the universe is always expanding but maintaining a constant average density,
steady-state theory
who proposed nebular hypothesis
immanuel kant
pierre simon laplace
composition of the sun
hydrogen
sun's center became compressed enough to initate what?
nuclear reactions
what star is the
sun
middle-aged start (yellow dwarf)
composition depended
on the
distance
from
the sun
.
A)
high
B)
low
2
planets closer to the sun
terrestrial
planets
least explored terrestrial planet
mercury
hottest planet due to greenhouse effect
venus
only known planet with life
earth
why is mars red?
oxidized iron
this is a high pressure region producing anticyclonic storm
great red spot
most complex ring system in the system
saturn
most extreme seasons due to its unique tilt
uranus
aka ice giant
neptune
earth's direction of rotation
counterclockwise
what is the first most massive known dward planet?
eris
what direction of
rotation
does venus do
retrograde
bodies of rock and
metal ranging from meters to
kilometers in diameter
asteroids
orbits the sun like
asteroids but made of ice
and dust, not rocks
comets
.
A)
gravity (accretion)
B)
heated (heating)
C)
differentiation
3
consequesnce of the ehating and differentiation of the earth
formation of atmosphere
formation of ocenas
life starts due to the appearance of the blue-green algae
Earth’s only natural satellite
Moon
sibling planet that collided with earth
theia
Early Earth history is marked by
heavy bombardment
Collision traces can be found in
mercury
mars
shape of the earth
oblate spheroid
Eratosthenes accurately
measured the Earth’s
circumference by measuring
the angle of the sun’s
shadow and distance
between two cities of
Alexandria
and
Syene
• the cumulative
height (elevation)
frequency curve of
the earth
HYPSOMETRIC
CURVE
how does venus rotate?
retrograde
direction
bodies f rock and metal
asteroids
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