Fact 1: Breaking apart rocks can cause debris.

Fact 2: And then the construction debris cleaned up.

Given the two facts above, answer the question "Breaking rocks apart can cause what?" with the following options: 
- Damages them
 - construction clean up
 - fissures of hot, acidic water
 - looseness of dirt or compost
 - harmful substances
 - permineralization
 - forest is destroyed
 - the Great Barrier Reef


 

  construction clean up       