What does the evidence supporting the Big Bang theory assume about the universe when it began? Select the two correct answers.(1 point)
a. it was contracting
b. it was very tiny
c. it was extremely hot
d. it was composed of ice
The two correct answers are:
b. it was very tiny
c. it was extremely hot
The evidence supporting the Big Bang theory assumes that the universe when it began was:
b. very tiny
c. extremely hot
To find the correct answers, we need to understand the foundations of the Big Bang theory and the evidence that supports it. The Big Bang theory proposes that the universe began around 13.8 billion years ago as a singularity, a point of infinite density and temperature.
Let's examine the options one by one:
a. it was contracting: According to the Big Bang theory, the universe started expanding from a singularity rather than contracting. So, this option is not correct.
b. it was very tiny: Yes, this is one of the assumptions supported by the evidence. The Big Bang theory suggests that the universe began as an extremely small, dense, and hot singularity.
c. it was extremely hot: Yes, this is another correct assumption. The evidence indicates that the early universe was extremely hot and dense, with temperatures reaching trillions of degrees Celsius.
d. it was composed of ice: No, this is not correct. The evidence and the Big Bang theory do not support the idea that the early universe was composed of ice.
Therefore, the two correct answers are: b. it was very tiny and c. it was extremely hot.