ESS 101 B EXAM 2 TEST BANK SOLVED QUESTIONS 100 PERCENT CORRECT ANSWERS
Question:
Match the magma type with the appropriate tectonic setting where it likely forms: Sierra Nevada
Batholith.
Answer:
granite
Question:
Match the magma type with the appropriate tectonic setting where it likely forms: Phillipine Islands.
Answer:
andesite
Question:
The Columbia Plateau is composed of rock rich in.
Answer:
basalt
Question:
The melting temperature of granitic magma (wet melt).
Answer:
increases as pressure is reduced (as it rises)
Question:
,A partial melt of the asthenosphere will not rise toward the surface because.
Answer:
the above question is incorrect because an asthenospheric melt will rise towards the surface
Question:
How do we know that Earth was created from the debris of a previous star system?
Answer:
Dense elements exist that could only have been formed through a Supernova event
Question:
Steps of the Nebular Hypothesis.
Answer:
- Supernova and formation of primordial dust cloud condensation of primordial dust. Forms
disk-shaped nebular cloud rotating counter-clockwise Proto sun and planets begin to form Accretion
of planetesimals and differentiation of planets and moons Existing solar system takes shape
Question:
Evidence to support the nebular hypothesis.
Answer:
- planets and moons revolve in a counter-clockwise direction (v. random) Planetary orbits are
aligned along the sun's equatorial plane (v. random) Observations from Hubble and radio astronomy
Question:
Characteristics of Terrestrial Planets.
Answer:
- Close to the sun, dense Small, rocky (silicate minerals, metallic cores)
,Question:
Characteristics of Jovian Planets.
Answer:
- Far from the sun, low density Large, gaseous (hydrogen, methane)
Question:
Can you explain why the earth and terrestrial planets have so little molecular hydrogen comprising
their respective atmospheres; yet the primarodial dust cloud was mostly comprised of hydrogen gas?
Answer:
- Key word: heat. Jovian planets are located far enough away from the sun that molecular hydrogen
is cool and dense enough to remain in their atmosphere Terrestrial planets are close enough to the
sun that molecular hydrogen would be too heated, not dense enough to remain in the atmosphere
Question:
What's the inner and outer core of the earth made of?
Answer:
Iron-Nickel Core
Question:
Inner core in which phase?
Answer:
solid
Question:
Outer core in which phase?
Answer:
liquid
, Question:
What's the mantle made of?
Answer:
Fe-Mg Silicate
Question:
What's the crust made of?
Answer:
Fe-Mg-Al Silicate
Question:
Differentiated earth order (starting from center).
Answer:
- Iron- Nickel Core Fe-Mg Silicate Mantle Fe-Mg-Al Silicate Crust (ocean and continental) Oceans
Atmosphere
Question:
How is the earth compositionally zoned?
Answer:
Along a density gradient
Question:
How did the earth become compositionally zoned?
Answer:
- accretion of planetesimals initial heating due to kinetic energy of colliding planetesimals and
compressional heating Additional heating from radioactive decay melting point reached, dense iron
sinks to core while lighter minerals are displaced outwards earth becomes compositionally zoned
Question:
Match the magma type with the appropriate tectonic setting where it likely forms: Sierra Nevada
Batholith.
Answer:
granite
Question:
Match the magma type with the appropriate tectonic setting where it likely forms: Phillipine Islands.
Answer:
andesite
Question:
The Columbia Plateau is composed of rock rich in.
Answer:
basalt
Question:
The melting temperature of granitic magma (wet melt).
Answer:
increases as pressure is reduced (as it rises)
Question:
,A partial melt of the asthenosphere will not rise toward the surface because.
Answer:
the above question is incorrect because an asthenospheric melt will rise towards the surface
Question:
How do we know that Earth was created from the debris of a previous star system?
Answer:
Dense elements exist that could only have been formed through a Supernova event
Question:
Steps of the Nebular Hypothesis.
Answer:
- Supernova and formation of primordial dust cloud condensation of primordial dust. Forms
disk-shaped nebular cloud rotating counter-clockwise Proto sun and planets begin to form Accretion
of planetesimals and differentiation of planets and moons Existing solar system takes shape
Question:
Evidence to support the nebular hypothesis.
Answer:
- planets and moons revolve in a counter-clockwise direction (v. random) Planetary orbits are
aligned along the sun's equatorial plane (v. random) Observations from Hubble and radio astronomy
Question:
Characteristics of Terrestrial Planets.
Answer:
- Close to the sun, dense Small, rocky (silicate minerals, metallic cores)
,Question:
Characteristics of Jovian Planets.
Answer:
- Far from the sun, low density Large, gaseous (hydrogen, methane)
Question:
Can you explain why the earth and terrestrial planets have so little molecular hydrogen comprising
their respective atmospheres; yet the primarodial dust cloud was mostly comprised of hydrogen gas?
Answer:
- Key word: heat. Jovian planets are located far enough away from the sun that molecular hydrogen
is cool and dense enough to remain in their atmosphere Terrestrial planets are close enough to the
sun that molecular hydrogen would be too heated, not dense enough to remain in the atmosphere
Question:
What's the inner and outer core of the earth made of?
Answer:
Iron-Nickel Core
Question:
Inner core in which phase?
Answer:
solid
Question:
Outer core in which phase?
Answer:
liquid
, Question:
What's the mantle made of?
Answer:
Fe-Mg Silicate
Question:
What's the crust made of?
Answer:
Fe-Mg-Al Silicate
Question:
Differentiated earth order (starting from center).
Answer:
- Iron- Nickel Core Fe-Mg Silicate Mantle Fe-Mg-Al Silicate Crust (ocean and continental) Oceans
Atmosphere
Question:
How is the earth compositionally zoned?
Answer:
Along a density gradient
Question:
How did the earth become compositionally zoned?
Answer:
- accretion of planetesimals initial heating due to kinetic energy of colliding planetesimals and
compressional heating Additional heating from radioactive decay melting point reached, dense iron
sinks to core while lighter minerals are displaced outwards earth becomes compositionally zoned
