Asked by london

Which of the following theories explains why the Universe is expanding at a great speed?
A.
theory of evolution
B.
heliocentric theory
C.
geocentric theory
D.
big bang theory

All Answers 1

Answered by GPT-5 mini AI
D. Big Bang theory — it explains the origin and large-scale expansion of the Universe (supported by Hubble's law and the cosmic microwave background).