According to the big bang theory, the known universe started 13.7 billion years ago in a hot dense state and expanded explosively. As it expanded, it cooled down to the point where atoms could form. By the force of gravity, these atoms coalesced into gas clouds that eventually became stars. These stars eventually formed young galaxies. Which of the following is true about the current position of the galaxies in the universe? A. The position of the galaxies cannot be predicted. B. The galaxies are now moving closer together. C. The galaxies are now drifting further apart. D. The position of the galaxies is not changing.

Where did the big bang take place?*1 pointCloser to the center of the milky wayNear AndromedaIn the far reaches of the universeNear EarthAll of the above, everywhere

Identify which of the following statements are true. The moment after the Big Bang, the universe expanded rapidlyAtoms existed at the time of the Big BangSince the Big Bang, the universe has not expanded at a constant rateOur Sun was one of the first stars in the universe to form

Match the following events with when they were first created or occured after the formation of the universe according to the notes. *9 points0 seconds 10^-36 seconds 1 microsecond 100 seconds 380,000 years 100 million years 500 million years 4 billion years 13.8 billion yearsBig Bang The Cosmic Microwave Background Greatest rate of star formation First nuclei The period of greatest expansion First subatomic particles First galaxies First stars Present day Big Bang The Cosmic Microwave Background Greatest rate of star formation First nuclei The period of greatest expansion First subatomic particles First galaxies First stars Present day

How long have we known about our place in the universe? When were the galaxies discovered?

Q 11.   Arrange the following into a meaningful sequence:1. However, the Big Bang theory does not explain what caused the initial singularity or what happened before it.2. According to the Big Bang theory, the universe began from a state of extremely high density and temperature, known as the initial singularity, about 13.8 billion years ago.3. The Big Bang theory is the most widely accepted scientific explanation for the origin and evolution of the universe.4. As the universe expanded and cooled down, it underwent various phases of development, such as inflation, nucleosynthesis, recombination, and structure formation.Options:A)  3, 2, 1, 4B)  2, 1, 4, 3C)  3, 2, 4, 1D)  4, 3, 2, 1E)  2, 1, 3, 4