Spicules on the solar surface are
A) jets of gas surging out of the photosphere of the Sun into the chromosphere, usually at supergranule boundaries.
B) intense eruptions from sunspot groups and active regions, associated with solar flares.
C) streams of solar coronal material, usually seen only during a total solar eclipse.
D) curtainlike structures hanging over sunspot regions.
Correct Answer:
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Q34: Until recent times, astronomers had to await
Q35: What is the name of the layer
Q36: The word "chromosphere" refers to a
A) dense,
Q37: What causes limb darkening?
A) The photosphere at
Q38: What are spicules?
A) small but rapidly erupting
Q40: What type of intensity distribution is seen
Q41: To what extent do spicules cover the
Q42: Which part of the Sun is the
Q43: How are spicules formed in the Sun's
Q44: Compared with the dimensions of a granule
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