Respuesta :

Answer:

  1. Industrial evolution - When population doubled twice.                
  2. Preindustrial society  - High birthrate but few children lived long enough to reproduce.            
  3. 20 th century - When population doubled twice.      
  4. 19 th century  - When human population exploded.

Answer:

1. d

2. c

3. a

4. b

Explanation:

Q&A Education