If a star were 2 light years away, how far is it?
2 trillion kilometers
11.76 trillion kilometers
18.92 trillion kilometers
18.92 kilometers

Johannesburg kepler, an apprentice of brahe, believed in the heliocentric universe but rejected past astronomers belief in

2points what is the term for a female reproductive cell? a. egg b. chromatid c. allele d. fertilization

Which best describes the nucleus of an atom a. it is where all of the particle s of the atom are located b. it is the negatively charged part of the atom c. it is where the electrons and the protons are located d. it is the part of the atom with the greatest mass