Question

what did hubbles observations about the universes expansion support? the big bang theory. the theory of evolution. the steady state theory. the theory of relativity.

Explanation:

Hubble's observations showed that galaxies are moving away from each other, which supports the idea that the universe is expanding. This is a key - concept in the Big Bang Theory, which posits that the universe began from a singularity and has been expanding ever since. The other theories listed are not related to the expansion of the universe. The Theory of Evolution pertains to biological change over time, the Steady - State Theory was an alternative to the Big Bang but has been largely discredited due to evidence like cosmic microwave background radiation, and the Theory of Relativity deals with gravity and the behavior of objects at high speeds or in strong gravitational fields.

Answer:

The Big Bang Theory.