Question

1. the big bang theory is the theory that about 14 billion years ago, the universe began with a massive explosion (big bang) of an extremely dense and very small point. how does the doppler effect / red shift provide evidence to support the big bang theory?

Explanation:

The Doppler Effect/Red - Shift shows that light from distant galaxies is shifted towards the red end of the spectrum. This indicates that galaxies are moving away from us. If all galaxies are moving away from each other, it implies that they were closer together in the past, supporting the idea that the universe started from a single point in a big explosion (the Big Bang).

Answer:

The Doppler Effect/Red - Shift shows galaxies are moving away from us, suggesting they were closer in the past, thus supporting the Big Bang Theory.