The Big Bang Hypothesis suggests that 20 billion years ago
a) life first formed on the planet earth
b) all matter collapsed into a single ball
c) our sun was born
d) space was much the same as it is today
e) matter did not exist
a
not a but all matter collapsed into a single ball
Really? That would have been a trick, forming life on Earth about 16 billion years before Earth formed.
Just to put your question in perspective, the age of the Universe is less than 14 billion years ago.
http://www.astro.ucla.edu/~wright/age.html
Finally, you can read about this, but there is no evidence that time itself existed before the formation of the Universe (Big Bang). Events before that have no meaning, certainly not in science.
The correct answer is b) all matter collapsed into a single ball.
The Big Bang Hypothesis suggests that approximately 13.8 billion years ago, all matter in the universe was compressed into an extremely hot and dense state, often referred to as a singularity. This singularity then expanded rapidly, resulting in the formation of the universe as we know it today. During this expansion, matter and energy spread out and cooled, eventually forming galaxies, stars, and planets over billions of years.
To arrive at this answer, you need to understand the basics of the Big Bang theory, which states that the universe originated from a singular point and has been expanding ever since. It is essential to have some background knowledge of astrophysics and cosmology to answer questions related to the Big Bang accurately.
Additionally, studying scientific literature, books, or online resources on the topic will provide you with a more comprehensive understanding of the subject matter.