How is the sunspot cycle directly relevant to us here on Earth?
A) Coronal mass ejections and other activity associated with the sunspot cycle can disrupt radio communications and knock out sensitive electronic equipment.
B) The sunspot cycle strongly influences Earth's weather.
C) The Sun's magnetic field, which plays a major role in the sunspot cycle, affects compass needles that we use on Earth.
D) The brightening and darkening of the Sun that occurs during the sunspot cycle affects plant photosynthesis here on Earth.
E) The sunspot cycle is the cause of recent global warming.
A) Coronal mass ejections and other activity associated with the sunspot cycle can disrupt radio communications and knock out sensitive electronic equipment.
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Which of the following planets was reclassified as a dwarf planet by the International Astronomical Union (IAU) in 2006?
A) Pluto B) Earth C) Uranus D) Saturn
The Sun lives in which component of the Milky Way?
A) a globular cluster B) the disk C) the halo D) the bulge
The force that holds two atoms together is called a(n) ________
Fill in the blank(s) with the appropriate word(s)
Quarks are held together by the color force.Electrons are made of quarks
Indicate whether the statement is true or false