Vocabulary Chapters 2,3,5 (Level 4)

One of the __________ causes of the environmental crisis is the human habit of increasing personal financial wealth without thinking about the impact on the planet.

- Choose one and may change the word's part of speech.
1) significant
2) visual
3) vary
4) persist
5) promotion
6) isolate
7) underlying
8) conformed
9) retain
10) distinct            

underlying