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ASTRO 205 Final Exam Content 4 Study Questions and Answers Rated A $14.49   Add to cart

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ASTRO 205 Final Exam Content 4 Study Questions and Answers Rated A

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ASTRO 205 Final Exam Content 4 Study Questions and Answers Rated A

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  • September 12, 2024
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  • ASTR 205
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ASTRO 205 Final Exam Content 4 Study
Questions and Answers Rated A.
Why do scientist believe liquid water existed on Mars?
✔✔The existence of ancient river beds that had to have been formed by
liquid.


What are Mars' polar caps made of?
✔✔Partially frozen CO2 but also frozen water


Where does most of mars water exist today ?
✔✔Frozen underground


What makes a planet habitable?
✔✔Planetary size (smaller worlds cool off), Distance from the sun
(goldilocks zone), rotation of the planet (faster rotation produce protective
magnetic fields)


What distance does a majority of Earth's atmospheric gas exist?
✔✔Troposphere - 10km from surface


What is Primary Atmosphere?
✔✔Formed by new planets by sweeping up gas in the accretion disk.


True or False: All terrestrial bodies lost their primary atmospheres.
✔✔True

, What is Secondary Atmosphere?
✔✔atmospheric gas acquired later by accretion, volcanism, and comet
impacts.


Arrange the Earths atmosphere in ascending order: stratosphere,
troposphere, Exosphere, Mesosphere, Thermosphere.
✔✔Troposphere, Stratosphere, Mesophere, Thermosphere, Exosphere


Why is Earth the only planet with a stratosphere?
✔✔Because it has life that photosynthesizes CO2 and produces Oxygen.
Protective Ozone layer exists in stratosphere.


Describe temperature curve in Troposphere:
✔✔Gradually decreasing until stratosphere. 0-10km


Describe temperature curve in Stratosphere:
✔✔Gradually increasing until mesosphere 10-50km


Describe temperature curve in Mesosphere:
✔✔Gradually decreasing until Thermosphere 50-80km


Describe temperature curve in Thermophere:
✔✔Temperature slightly rises with altitude 80-200km (location of
ionosphere)


Describe temperature curve in Exosphere:
✔✔slightly rises with altitude, warmed by x-rays and UV-rays

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