Antiprotons and positrons are examples of ______________, which ...

[fagboi]

Antiprotons and positrons are examples of ______________, which are not ordinary matter.
 
  Fill in the blank(s) with correct word

Question 2

After recombination occurred, the Universe was plunged into a period of time known as the ___________, which lasted hundreds of millions of years until the first stars were born.
 
  Fill in the blank(s) with correct word

[fur]

Answer to Question 1

antimatter

Answer to Question 2

dark age

[fagboi]

Excellent

[T4T]

Thanks for the timely response, appreciate it