Eta Carinae is an example of a
A) black hole.
B) supermassive star.
C) red dwarf.
D) nebula.
E) stellar nursery.
B
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_________corrosion is intense, localized corrosion that occurs when a material has areas of restricted exposure to an electrolyte.
Fill in the blank(s) with the appropriate word(s).
How far does light travel in 1.0 ?s? (c = 3.0 × 108 m/s)
A) 3.0 × 1014 m B) 0.30 km C) 3.0 m D) 30 cm
The precipitation of and crystallization of evaporite minerals is very similar to the crystallization of minerals from a magma. The first evaporite minerals to precipitate (crystallize) are those with the
A) lowest solubility. B) highest melting point. C) lowest silica content. D) highest solubility.
The outer core is thought to be molten because it
A) is denser than the inner core. B) will not transmit P-waves. C) is made of iron and nickel. D) will not transmit S-waves.