Question

question 6 of 28
why does the presence of cosmic background radiation support the big bang theory?
a. it shows that matter and energy are quantized.
b. it shows that matter and energy are equivalent.
c. it indicates a uniform energy residue from a single source.
d. it indicates that space is expanding in all directions.

Explanation:

Cosmic background radiation is considered the "after - glow" of the Big Bang. It is a nearly uniform residual energy that fills the universe and is thought to be leftover from the early, hot, dense state of the universe. This uniform energy residue from a single source (the Big Bang) supports the Big Bang theory. Option A is about quantum mechanics concepts not related to this support. Option B refers to Einstein's mass - energy equivalence which is not the reason for CBR supporting the Big Bang. Option D is a feature of the expanding universe concept but not the direct reason CBR supports the Big Bang.

Answer:

C. It indicates a uniform energy residue from a single source.