Question

question 1
a brown dwarf is
an object that is smaller in mass than jupiter which is undergoing fusion
a chocolate - covered keebler elf
a white dwarf that has cooled off
an object not quite massive enough to be a star

Explanation:

A brown dwarf has more mass than Jupiter and is not undergoing fusion like a star. It is too massive to be a planet but not massive enough to sustain hydrogen - fusion in its core like a star. The first option is wrong as brown dwarfs are more massive than Jupiter and don't undergo fusion like stars. The second option is a non - scientific joke. A white dwarf is the remnant of a star and a brown dwarf is a different type of object.

Answer:

D. an object not quite massive enough to be a star