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Astronomy
Test Description: Astronomy
Instructions: Answer all questions to get your test result.
1) The atmosphere of Venus consists of thick yellow clouds formed mostly from
A
carbon
B
sulfur
C
helium
D
hydrogen
2) Why does the amount of daylight change during the course of the year?
A
Earth rotates at different speeds at different times of the year
B
The distance between the Sun and Earth changes from summer to winter.
C
The North Pole points more toward the Sun at one time of the year than another.
D
The amount of light and heat radiated by the sun changes at different times of the year.
3) Daylight in the Northern Hemisphere lasts longer in summer than in winter, and the change in the length of day happens in a predictable pattern. Which statement correctly explains this condition of Earth's environment?
A
Earth turns slower in summer than it does in winter.
B
Earth, with its tilted axis, moves around the Sun in a predictable way.
C
The sun moves closer to Earth in summer and farther away in winter.
D
There is a predictable change in the amount of heat and light given off by the sun.
4) How does the number of hours of daylight compare to the number of hours of darkness on March 20,the first day of spring in the Northern Hemisphere?
A
There are more hours of daylight than darkness
B
The hours of daylight and darkness are the same.
C
The number of hours of daylight and darkness cannot be predicted in advance.
D
There are more hours of darkness than daylight
5) Which planet is characterized by thick cloud cover, greenhouse effect, vast planins, and high mountains?
A
Uranus
B
Saturn
C
Venus
D
Mercury
6) Which planet is characterized by polar ice caps, a pink sky, a rust-colored surface, large volcanoes, and surface channels (old river beds)?
A
Mars
B
Uranus
C
Pluto
D
Saturn
7) Which planet has a great red spot and many moons
A
Jupiter
B
Mercury
C
Mars
D
Neptune
8) The ozone layer in Earth's upper atmosphere is important to living organisms because it
A
breaks down harmful pollutants into normal atmospheric gases.
B
absorbs harmful ultraviolet radiation from the Sun
C
traps heat close to Earth's surface to maintain temperatures necessary for life.
D
supplies the oxygen living organisms require to carry on respiration.
9) Earth is tilted 23.5 degrees on its axis and revolves around the sun creating seasons. What angle would Earth's tilt need to be in order for there to be no seasons?
A
0 degrees
B
The tilt doesn't affect seasons
C
60 degrees
D
45 degrees
10) Which planet is closer to the Sun than Earth is to the Sun?
A
Saturn
B
Mars
C
Venus
D
Jupiter
*select an answer for all questions
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