According to current scientific estimates, when did the Big Bang occur?
A) about 10 billion years ago
B) about 65 million years ago
C) about 4.5 billion years ago
D) about 14 billion years ago
E) about 20 billion years ago
D
You might also like to view...
Why couldn't life have originated on any of the Jovian planets?
What will be an ideal response?
Choose the correct terms to make the statement correct: ___Chemical/Biological__ evolution occurs before __chemical/biological____ evolution
Fill in the blank(s) with correct word
How are galaxies important to our existence?
A) Deep in their centers, galaxies created the elements from which we are made. B) Galaxies recycle material from one generation of stars to the next, and without this recycling we could not exist. C) Without galaxies, the universe could not be expanding. D) Without galaxies, there could not have been a Big Bang.
An object's "momentum" is defined as
A) its force time is velocity. B) its mass times its speed. C) its force times its distance. D) its mass times its velocity. E) its weight times its speed.