GEOLOGY 109 EXAM 1 NEWEST ACTUAL
EXAM WITH COMPLETE QUESTIONS
AND DETAILED ANSWERS GRADED A |
BRAND NEW!!!
What properties of the atmophile elements (hydrogen, helium,
carbon, nitrogen, oxygen) allow them to generate
atmospheres? - ✔✔✔ Correct Answer > They are volatile
elements.
They form molecules with low densities.
Which of the following is not a way that a planet's atmosphere
can lose gas? - ✔✔✔ Correct Answer > the process of
outgassing
Why do the inner planets lack thick atmospheres of hydrogen
and helium? - ✔✔✔ Correct Answer > Because they are too
small to have retained such gases.
How did Earth's atmosphere form? - ✔✔✔ Correct Answer > By
gaseous exhalations from rocks deep inside.
,Study this graph of the sizes (diameters) and densities of the
planets and some of their satellites. Each color represents a
different class of planetary bodies. Click on the grouping that
represents the inner planets. - ✔✔✔ Correct Answer > B (high
density, moderate diameter)
Study this graph of the sizes and densities of the planets and
some of their satellites. Each color represents a different class
of planetary bodies. Click on the grouping that represents the
outer planets. - ✔✔✔ Correct Answer > C (low density, high
diameter)
Study this graph of the sizes and densities of the planets and
some of their satellites. Each color represents a different class
of planetary bodies. Click on the grouping that represents the
moons of the outer planets? - ✔✔✔ Correct Answer > A (low
density, low diameter)
Why do the planets have different densities? - ✔✔✔ Correct
Answer > The planets have different mixtures of ice, silicates,
iron, and gas
, What is the age of most meteorites that fall to Earth? - ✔✔✔
Correct Answer > Almost all have ages of about 4.6 billion years
Why are chondritic meteorites so important? - ✔✔✔ Correct
Answer > They are undifferentiated, and preserve evidence
about the age and nature of condensation in the ancient solar
nebula.
Most meteorites that fall to Earth are of which type? - ✔✔✔
Correct Answer > stony meteorites
Which is true about iron meteorites? - ✔✔✔ Correct Answer >
Iron meteorites formed during the internal differentiation of
small asteroids.
Some stony-iron meteorites appear to have
______________________. - ✔✔✔ Correct Answer > been
formed at the core-mantle boundary of an asteroid
What is one evidence suggesting that SNC meteorites came
from Mars? - ✔✔✔ Correct Answer > their young ages
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