Author Question: Astronomers who subscribe to the Big Bang theory believe the Big Bang occurred A) about 14 ... (Read 143 times)

SAVANNAHHOOPER23 · **on:** Jul 29, 2018

Astronomers who subscribe to the Big Bang theory believe the Big Bang occurred

A) about 14 billion years ago.
B) at the beginning of time.
C) both of these
D) neither of these

Question 2

The difference between lightwaves approaching and lightwaves receding is

A) when approaching, lightwaves have higher frequency; when receding their frequency is lower.
B) when approaching, lightwaves have lower frequency; when receding their frequency is higher.
C) the frequency of approaching lightwaves remain constant, while receding lightwaves are invisible.
D) There is no difference