Question

The big bang theory applies to the initial formation of ______.

Options

• the expanding universe

• our solar system

• Earth and the planets

• the first protobionts

Answer 1

The big bang theory applies to the initial formation of the expanding universe.

Explanation:

The Big Bang theory describes a massive explosion of tightly condensed matter billions of years ago, which led to the expansion of the universe and the cooling down of its temperature. Following the Big Bang, hydrogen and helium formed, which later condensed under gravity to form galaxies, stars, and eventually planetary systems. The theory does not specifically describe the formation of our solar system, Earth, or the first protobionts, but rather the overall origin and expansion of the universe itself.