Toggle navigation
Review Game Zone
Flashcards
(current)
Games
Test
Preview
Which of the following statements about the effect of early organisms on Earth’s environment is true?
The first photosynthetic organisms caused Earth to cool as they converted carbon dioxide to oxygen
Click Card to Flip |
Start Over
| 2 out of 14
Previous
Next
Teachers:
Create FREE flashcards and games
© 2007 - 2024 Review Game Zone
|
Privacy
|
Terms