The cause of the "meteor showers" seen at regular times each year on the EarthEarth is most MOST probably:
A) the EarthEarth running into material within the spiral arm structure of the Milky Way.
B) unstable weather conditions on the EarthEarth.
C) the EarthEarth moving through the remnant dust and rock fragments of an old comet that are orbiting the Sun in the comet''s old orbit.
D) sunspot activity and the resultant geomagnetic disturbances.
Correct Answer:
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Q143: A meteor shower,or the appearance of many
Q144: The 1908 Tunguska event resulted in three
Q146: Meteoroid is the term used to describe
Q147: What causes a meteor shower?
A) If Earth
Q149: When investigators reached the site of the
Q150: A meteor shower results from:
A) material ejected
Q151: MOSTost meteor showers occur when Earth moves
Q152: In 2013,a large meteoroid did considerable damage
Q153: From which planet is the meteoritic material
Q154: A chunk of rock and metal 10
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