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ASTR FINAL EXAM WITH ACTUAL CORRECT QUESTIONS AND VERIFIED DETAILED ANSWERS |FREQUENTLY TESTED QUESTIONS AND SOLUTIONS |ALREADY GRADED A+|NEWEST|GUARANTEED PASS |LATEST UPDATE$21.49
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ASTR FINAL EXAM WITH ACTUAL CORRECT QUESTIONS AND VERIFIED DETAILED ANSWERS |FREQUENTLY TESTED QUESTIONS AND SOLUTIONS |ALREADY GRADED A+|NEWEST|GUARANTEED PASS |LATEST UPDATE
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Course
ASTR
Institution
ASTR
ASTR FINAL EXAM WITH
ACTUAL CORRECT QUESTIONS AND
VERIFIED DETAILED ANSWERS
|FREQUENTLY TESTED QUESTIONS
AND SOLUTIONS |ALREADY GRADED
A+|NEWEST|GUARANTEED PASS
|LATEST UPDATE
ASTR FINAL EXAM 2024-2025 WITH
ACTUAL CORRECT QUESTIONS AND
VERIFIED DETAILED ANSWERS
|FREQUENTLY TESTED QUESTIONS
AND SOLUTIONS |ALREADY GRADED
A+|NEWEST|GUARANTEED PASS
|LATEST UPDATE
Which of the following worlds has the greatest difference in temperature between its "no atmosphere"
temperature and its actual temperature?
A) Mercury
B) Venus
C) Earth
D) the Moon
E) Mars
B) Venus
Why does Venus have such a great difference in temperature between its "no atmosphere" temperature
and its actual temperature?
A) It has a slow rotation.
B) It is so close to the Sun.
C) It has a large amount of greenhouse gases in its atmosphere.
D) It has a high level of volcanic activity.
E) It has no cooling effects from oceans.
C) It has a large amount of greenhouse gases in its atmosphere.
Which planet experiences the greatest change between its actual day temperature and actual night
temperature?
A) Mercury
B) Venus
C) Earth
D) Mars
1|Page
,A) Mercury
Earth's stratosphere is heated primarily by which process?
A) Convection from the Earth's surface.
B) Absorption of infrared radiation by greenhouse gases.
C) Absorption of visible light by ozone.
D) Absorption of ultraviolet radiation by ozone.
E) Atoms and molecules absorb infrared sunlight.
D) Absorption of ultraviolet radiation by ozone.
Suppose Earth's atmosphere had no greenhouse gases. Then Earth's average surface temperature would
be
A) 250 K, which is well below freezing.
B) 273 K, or about the freezing point for water.
C) 283 K, or about 5 K cooler than it is now.
D) 288 K, or about the same as it is now.
E) 293 K, or about 5 K warmer than it is now.
A) 250 K, which is well below freezing.
What are greenhouse gases?
A) gases that absorb visible light
B) gases that absorb ultraviolet light
C) gases that absorb infrared light
D) gases that transmit visible light
E) gases that transmit infrared light
C) gases that absorb infrared light
Which of the following gases absorbs ultraviolet light best?
A) carbon dioxide
B) nitrogen
C) oxygen
D) hydrogen
E) ozone
E) ozone
X rays from the Sun's corona
A) are absorbed in Earth's troposphere.
B) are absorbed in Earth's thermosphere.
C) cause meteor showers.
D) break apart ozone in the stratosphere.
E) generally reach Earth's surface and fry us.
B) are absorbed in Earth's thermosphere.
2|Page
,How does the greenhouse effect work?
A) Greenhouse gases transmit visible light, allowing it to heat the surface, but then absorb infrared light
from Earth, trapping the heat near the surface.
B) The higher pressure of the thick atmosphere at lower altitudes traps heat in more effectively.
C) Ozone transmits visible light, allowing it to heat the surface, but then absorbs most of the infrared
heat, trapping the heat near the surface.
D) Greenhouse gases absorb X rays and ultraviolet light from the Sun, which then heat the atmosphere
and the surface.
E) Greenhouse gases absorb infrared light from the Sun, which then heats the atmosphere and the
surface.
A) Greenhouse gases transmit visible light, allowing it to heat the surface, but then absorb infrared light
from Earth, trapping the heat near the surface.
The proper order of the layers of a generic atmosphere from lowest altitude to highest is
A) troposphere, stratosphere, exosphere, thermosphere.
B) troposphere, stratosphere, thermosphere, exosphere.
C) stratosphere, troposphere, exosphere, thermosphere.
D) stratosphere, troposphere, thermosphere, exosphere.
E) none of the above
B) troposphere, stratosphere, thermosphere, exosphere.
What is the exosphere?
A) the lowest layer in the atmosphere
B) the part of the atmosphere that absorbs optical light
C) the part of the atmosphere that absorbs ultraviolet
D) the part of the atmosphere that absorbs X rays
E) the highest layer in the atmosphere
E) the highest layer in the atmosphere
What is the thermosphere?
A) the lowest layer in the atmosphere
B) the part of the atmosphere that absorbs optical light
C) the part of the atmosphere that absorbs ultraviolet
D) the part of the atmosphere that absorbs X rays
E) the highest layer in the atmosphere
D) the part of the atmosphere that absorbs X rays
What is the stratosphere?
A) the lowest layer in the atmosphere
B) the part of the atmosphere that absorbs optical light
C) the part of the atmosphere that absorbs ultraviolet
D) the part of the atmosphere that absorbs X rays
E) the highest layer in the atmosphere
3|Page
, C) the part of the atmosphere that absorbs ultraviolet
What is the troposphere?
A) the lowest layer in the atmosphere
B) the part of the atmosphere that absorbs optical light
C) the part of the atmosphere that absorbs ultraviolet
D) the part of the atmosphere that absorbs X rays
E) the highest layer in the atmosphere
A) the lowest layer in the atmosphere
Which of the following planets has a stratosphere?
A) Mercury
B) Venus
C) Earth
D) Mars
E) all of the above
C) Earth
Which of the following planets has an exosphere?
A) Mercury
B) Venus
C) Earth
D) Mars
E) all of the above
E) all of the above
The thermosphere is warm because it
A) absorbs X rays.
B) absorbs infrared light.
C) absorbs visible light.
D) contains greenhouse gases.
E) absorbs ultraviolet light.
A) absorbs X rays.
Ultraviolet light is absorbed in the
A) exosphere.
B) thermosphere.
C) stratosphere.
D) troposphere.
E) none of the above
C) stratosphere.
The ionosphere is a layer of ionized gas that is
A) above the exosphere.
4|Page
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