Question

humans threaten many biomes by building areas for humans to use. the building of these areas causes ecosystems to be broken up into smaller areas. what is this called?
clearcutting
fragmentation

Explanation:

The problem is about identifying the term for when ecosystems are broken into smaller areas due to human activities. Clearcutting refers to the removal of most or all trees in an area, while fragmentation is the process of breaking ecosystems into smaller, isolated patches. So the correct term is Fragmentation.

Answer:

Fragmentation