Why Are Changes of State in the Early Universe Referred

Q8: How do we know the Milky Way

Q9: In what way is the Milky Way

Q10: How did scientists calculate the value of

Q11: According to the current ideas about the

Q12: Which statement about dark matter is accepted

Q14: The most recent "freezing" of the universe

Q15: Which of the following describes a quasar?<br>A)

Q16: Evidence for the Big Bang includes the<br>A)

Q17: Compare the expanding-balloon analogy of the universe

Q18: If a proton and a neutron came