Question

Name three forms of evidence used to support the Big Bang theory.

Answer 1

The three forms of evidence used to support the "Big Bang theory" are as below:

• The Red Shift.

• Microwave background radiation.

• The abundance of elements.

Step-by-step explanation:

• It is observed that the galaxies in the universe are "moving away" from each other. It is concluded from this distancing of the galaxies that they must have originated from a single source.

• The Big Bang Model put forward by Georges Lemaitre, the one who proposed the Big Bang theory, suggested that there must have been a microwave background radiation during the Big Bang, which was later discovered to be existent in the outer space.

• The abundance of elements in the lithosphere, atmosphere and in the outer space also points towards the possible occurrence of the Big Bang.

Answer 2

1. All the galaxies are moving away from each other, suggesting that they all came from the same place in space. (the red shift)

2. There was cosmic microwave background radiation in space that was predicted by the big bang model.

3. The abundances of the elements can be explained using the big bang theory.