Earth Science Geology, the Environment, and the Universe

Section 1: The Sun

Self-Check Quizzes-English

1
What two elements make up 98.4 percent of the Sun's composition?
A)hydrogen and carbon dioxide
B)hydrogen and nitrogen
C)hydrogen and oxygen
D)hydrogen and helium
2
From where on the Sun does the solar wind escape?
A)corona
B)chromosphere
C)solar flares
D)photosphere
3
What are the dark areas on the Sun's photosphere called?
A)auroras
B)sunspots
C)solar winds
D)solar flares
4
The Sun contains __________ percent of all the mass in our solar system.
A)99
B)1
C)100
D)10
5
Gas flows outward from the corona and forms the __________.
A)sunspot
B)aurora
C)solar wind
D)solar flare
6
Why do astronomers rely on computer models for an explanation of the Sun's interior?
A)to remove the effects of the solar wind
B)They need more than the observations of the interior.
C)The interior is only visible during a solar eclipse.
D)The interior can't be directly observed.
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