Author Question: When the universe originated, it was composed of 100 and , ... (Read 120 times)

Chloeellawright · **on:** Jul 15, 2018

When the universe originated, it was composed of 100 ___________________ _ and
___________________ _, but now consists of ___________________ _ hydrogen and 2
___________________ _ elements. Fill in the blank(s) with the appropriate word(s).

Question 2

When the universe originated, it was composed of 100 ___________________ _ and
___________________ _, but now consists of ___________________ _ hydrogen and 2
___________________ _ elements. Fill in the blank(s) with the appropriate word(s).