In the geocentric model of the Solar System, what is at the center of the solar system? correct answers earth
Our solar sytem lies on what part of the Milky Way? correct answers outer arm
What element was first to form? correct answers Hydrogen
What did our solar system begin as? correct a...
EESC 1100 First exam || with Complete Solutions.
In the geocentric model of the Solar System, what is at the center of the solar system? correct
answers earth
Our solar sytem lies on what part of the Milky Way? correct answers outer arm
What element was first to form? correct answers Hydrogen
What did our solar system begin as? correct answers second or third generation nebula
What is the oldest planet in the solar system? correct answers all the same age
What are the two most common components of Earth's atmosphere? correct answers nitrogen
and oxygen
What process caused the formation of the Earth's core? correct answers differentiation
What is volumetrically the largest layer of Earth? correct answers mantle
What color shift in the visible spectrum of distant galaxies shows us the universe is expanding?
correct answers red
Pluto and Eris (two dwarf planets) are found where? correct answers Kuiper belt
Among the continental crust, oceanic crust, outer core, troposphere and mesosphere, which is
least dense? correct answers mesosphere
What does an astronomical unit (AU) represent? correct answers distance between the Earth and
the Sun
In which Earth layer is the magnetic field generated? correct answers outer core
Which two elements make up the vast majority of the Earth's crust? correct answers silicon and
oxygen
What is the boundary between the crust and the mantle called? correct answers moho
A body of solid rock or metal that orbits the sun is called what? correct answers asteroid
Who first proposed the theory of continental drift? correct answers Alfred Wegener
Around the world compass needles tend not to point to the geographic north, what is the angle
between the geographic pole and the magnetic pole called? correct answers declination
What does the wandering of the Earth's poles tell us? correct answers Continents drift
, What does the width of a seafloor magnetic strip indicate? correct answers Duration of the polar
reversal
What is the difference between the expected strength of the Earth's magnetic field and its actual
strength? correct answers magnetic anomaly
What was the name of the supercontinent? correct answers Pangaea
The lithosphere immediately overlies which layer of Earth? correct answers asthenosphere
Which lithosphere is denser, oceanic or continental? correct answers oceanic
What are the coastlines that conincide with plate boundaries called? correct answers active
margines
Which continent is surrounded by passive margins? correct answers Australia
Where is oceanic crust on the sea floor the thinnest? correct answers close to mid-ocean ridges
Where can the youngest rocks on the seafloor be found? correct answers near the mid-ocean
ridges
When two plates come together as a convergent boundary, what subducts? correct answers
oceanic lithosphere
Who developed the geocentric model? correct answers Ptolemy
Who developed the heliocentric model? correct answers Copernicus
Who is credited early on with advancing astronomy? correct answers Galileo, Kepler and
Newton
What is the radius of the sun? correct answers 1.4 x 10^6 km
What surrounds the core of the sun? correct answers plasma envelope, photosphere
What are stars classified by? correct answers effective temperature and luminosity
How do stars along the main sequence generate energy? correct answers hydrogen fusion
How many stars are in the Milky Way? correct answers Over 300 billion
Around how many galaxies are in the visible universe? correct answers 1 trillion
What percentage of mass of our solar system does the sun account for? correct answers 99.8%
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